I’ve worked in PR and communication for the last five years - some of that time in scientific communications. If you google “Drawn to Science” you will find some of my work ;-)
I respectfully disagree with the statistics on the reduction of the attention span - not that they are false (though I am not sure how you can measure that reliably), but they are misleading. The key word is “average”. While content is constantly increasing, time -as we all know- is a finite and non-stretchable quantity. The result is that - on average- each piece of content will receive less time. That’s as obvious as warm water and doesn’t mean much.
The good, interesting, engaging content will still be read/seen and people will spend time with it. Otherwise nobody would watch good movies or read books anymore ;-))
Due the mass of content, however, the competition for attention is fierce, and the quality of the content becomes more important than ever before.
And that, of course, applies to artists as to any other content creator...