Adding my first 2 cents,and is only my opinion
Music never ruin itself,is people that ruin the music,(what i get from Carol's interview).
But being music a vehicle of expression,some people use it to express bad or good things in different ways,and some do it in ways that annoys you,some in ways to destroy you,some in ways to amuse you,some in ways to depress you,some to attack you,some to relax you,some to inspire you. (obviously,Carol got affected by the way she heard people was making music,naturally,we all are music critics)
And some just do not care how you get it or affects you.
There are phases a musician goes through (some never stop to think about those phases,nor that they have to) where meanings reverse : like most people start playing to satisfy themselves,some never leave this stage,then later start thinking how their music is perceived,there is a need to be "liked" through the music,or through the technique,or through sharing one's feelings at playing,or through KNOWLEDGE.Now they are playing "outward" more than playing "in".Or find a balance for both.
Some do not even want to be "liked",is not their goal.
But for whatever reason we are playing,we are living an specific era,and we learn what is at hand,taking some things and rejecting others,there is only one constant : we need to learn them to know the difference and to be able to discern what we are going to use,what path to follow (and even though we can take another direction in the future).
If you never learned scales,there is no foundation to hate them,or to teach against them,same goes for chords,if you do not know them,you cannot go against them.
The advice is : YOU LEARN ALL YOU CAN AND THERE IS,as did Carol,only then you can see what is people doing and take a stand,as she did.
It is very simple : you have to know you major,minor,dominants,suspended,diminished and so on chords or scales,you have to learn chord progressions for different styles,a little harmony,as a basis for a foundation.
Unless you want NO foundation,which is also another way of express yourself to the world of music.
Of course,you gonna start fighting against all musical instruments designed exclusively with foundation in mind (which is why guitars have frets and pianos have keys,and flutes have holes)(let's pretend fretless skip the frets,but not the notes,unless you are a martian and never hit the right notes on purpose thus no band will want you)
Instruments today are engineered for people to learn them,so...........you learn them.
Unless you do not want to,of course,just not be against those that do.
Scales and chords are all part of the same musical western culture we are submerged in.