N.B. I don't want to copy and paste the whole article. It got me in trouble in the past.
I've posted a comment with a link (#59) to a very lengthy "
anti-metronome" article written by a very good Jazz musician, Mike Longo.
I did it just make sure that I am not BIASED. (I am practicing with the Metronome and NOBODY, even 3 million people won't persuade me otherwise. Also, I have my favorite colors for the kitchen, living room, etc...

and argue even with my wife.)
The article you have quoted was, more or less, "pro-metronome" opinion, and, of course, does not offer a walking bass course, or "Playing Bach on the electric bass" class.
Your quoted article is more like "fair and balanced" report by WUTP who used to play.
Here is more from that article.
"As a developing musician, improving your time and rhythm is one of the most important technical aspects to prioritize, regardless of what instrument you play. After all, it is thanks to time that we can make sense of music, and if we didn't organize it in some fashion (rhythm), all we would hear would be a random collection of sounds.
When I say that time and rhythm are the "foundations of musical expression" I mean that, despite all the structures we have created (genres, styles, feels, etc.), music is still just the convergence of two things:
what and
when."
"Even when a musician is playing
rubato – which may seem like an exception to the rule – in reality he is using time as a dynamic tool: he is manipulating the perception of time in order to create an emotional reaction. That's achieved thanks to great control of rhythm and, of course, artistic maturity."
By the way, the author of that article is
Paolo is a drummer, team member, ensemble instructor and the director at NY Ensemble Classes.
NY Ensemble Classes -
is a jazz school located in New York City, in the heart of Manhattan. We teach ensemble classes in a very special way, like no one else in the city.
As you can see, that Jazz school also claims about a "very special way (the one and only)" of teaching Jazz like no one else in New York City.
I have NO idea how good or how bad that school is, but...
Here is more from that article.
"It all begins from the basics: rhythmic accuracy. If your rhythm is inaccurate it means that you are lacking clarity, and your general timing will suffer from it. Practicing the following can help.
Rhythmic fluency – Being able to
play different rhythms (such as quarter notes, eighth notes, triplets of different kinds, quadruplets, quintuplets, and so forth) and being able to
incorporate those rhythms in a dynamic musical fashion are two different things. The difference is in the process. To find out how good your rhythmic fluency is, test yourself by playing
improvised mixed rhythms with a metronome and see if you can keep your pulse steady. The flow of different rhythmic ideas should be ideally bump-free. If not, isolate the rhythms or combinations of rhythms that you couldn't play accurately, and practice them until they feel comfortable, then try this exercise again.
Similarly,
Dynamic Fluency is an important and sometimes overlooked skill. Experiment with performing music while
improvising varied dynamic levels, ranging from
ppp to
fff. Perform a mix of those dynamics the same way you did for the previous exercise. For example, a combination could be
mf, ppp, ff, mp, fff. You may find that some of these transitions affect your sense of time. On most instruments playing very soft or very loud require technical adjustments, look into it.
Practicing Extreme Tempos – Being able to play well at 150 bpm doesn't mean that you have good time if you drag or rush at 190 bpm.
Practice all tempos, from very slow to very fast. Playing extremely slow requires dedication and patience, but it pays off. Some care is required with fast tempos; let your current technical level determine how far you can take it. If you can't play correctly, then it's too fast: it serves no one to play incredibly fast sloppy music!
Knowing the tempos – Once, master drummer Kenwood Dennard put my sense of time to the test. He asked me to play at different tempos without checking with a metronome or counting me in. The test was to see how close I would get to the actual mark. It's good to know tempos by heart and be able to get very close to guessing actual beats per minute. This may seem like a nerdy approach, but if you have a good notion of how fast 175 bpm is, it will help you to keep your time in check while playing. You can work on it with a simple game; set the metronome on your smartphone to any tempo, then guess how fast it is (count beats in your head, tap a foot, snap your fingers) before starting it. Verify how close you got and try again with a different tempo. It's a subway time killer, no pun intended."