I think, rather than technology making ".. it really easy to become an amazing musician," the definition of "musician" has changed... A great deal. The vast majority of today's "musicians" amaze me only in that so many consumers consider them to actually BE musicians.
Becoming an amazing musician takes decades of time, unwavering dedication, and hours of practice daily. Technology hasn't changed that one bit. As with so many things, we've changed the definition. I've done a lot of the maintenance and some pretty major repairs on my cars over the years. Does that make me a mechanic? I can sweat pipes and do all of our plumbing. Am I a plumber? I can do some rudimentary house wiring, do basic speaker and crossover design, and even repair the odd piece of audio gear. Am I an electrician or electrical engineer?
The answer to my questions, just in case it isn't obvious, is "NO." I do not have near the skills, expertise, nor experience of REAL mechanics, plumbers, electricians, and engineers. Yet... Everybody's a musician. It's easy.
Yeah. Right.
I do agree that Jaco was a one-off, incredible pioneer, and won't ever be duplicated, but that's not musicians do. We take the influences of the greats we admire absorbing as much as we can, and over decades our own new voices emerge. No point in trying to be Jaco... Jaco already has been. Lots of folks "steal" his stuff, and do it VERY well.. while not playing exactly like Jaco.
Well, I never really thought about the definition of musician, but I would call myself a musician. To me a musician is one of two things. It's either someone who works professionally as a musician, i.e. someone who gets paid to play, or someone who consciously plays music. Meaning people that care about playing music, not just about an instrument. Maybe it's a matter of intent. When you look at some of those hobby guitarists, they're exactly that, hobby guitarists. They may dream about being a rock star, or imagine playing infront of thousands of people like Van Halen did, but they don't actually intent on being a musician.
Also, when I said it's easy to become an amazing musician, I didn't mean that there's a lot of amazing musicians out there. But definitely more than 50 years ago, not only, but also, because of the technology. A couple decades ago you would have to go to a library to get a book on music, get a teacher, buy single records with your hard earned money, all that just to learn about what music is even out there, and what music means to people. Nowadays I can listen to, and LOOK at, what people for the past 100 years have been playing. And with the millions of people who some might call musicians, there's bound to be hundreds, if not thousands, who are really amazing.
I mean, if I would have to save up a month to be able to buy a Weather Report record, then of course it's gonna take more time for me to learn about this great music, than if I were to right now go on Spotify and listen to the whole discography. You just need the dedication and attention span for that. And as I said, there's bound to be plenty of people like that around, who will learn, and who will more quickly get to their own voice as well.
I've only ever seen very few people who very clearly try to be someone else. Especially with Primus fans, you find a couple who copy not only Les Claypools playing, but his whole attire, attitude, speech patterns, so on. But they're definitely far and few between.