There have never been any barriers for creators. Folk art has always been a part of human societies.
There were barriers for mass dissemination of artistic works, but not the process of creation.
Mass media put the local artists out of business. Before the advent of radio and recorded music there were many more musicians and bands. Now everyone has to compete on a global level.
I would argue that in this new global digital attention economy that there is even more competition and even less room for local and alternative voices.
Live music profits are at an all time high but it is all concentrated at the top. The long tail is a fallacy.