I see the misunderstanding - you are placing too much emphasis on "artist struggles".
I have seen "about the artist" writeups and museums, and I've been to about the artists talks - both talking about struggles. The idea that they don't exist is false in my experience. However generally writeups by the art itself is "historical, thematic and philosophical aspects to art".
The "historical, thematic and philosophical aspects to art" do not move me at all. I've seen plenty of writeups on them next to art I enjoy - I've learned to not bother reading those place cards (and I love reading!) because they are a waste of time. I know what I like, and those writeups are uninteresting to me.
If you like them fine, but they harm my enjoyment. For that matter if art exhibts were about something else than "historical, thematic and philosophical aspects to art" I would likely enjoy art more. (and I supposed artists would scream about the museums selling out)