Specifically, David Mamet and Aaron Sorkin, who directly tells everyone to read Poetics. But also anyone who engages in poetry and lyrics; the whole idea of poetry is adding limits and seeing what you can do with it.
Think of it like chords in music, or moves on a game. If you play tennis and anyone can just kick or throw the ball, that's not very fun.
This seems like the classic fixed vs growth mindset situation. There are those who think that we are born with all our capability and then there are those who think that we can gain new capabilities through experience.
If you're truly set on believing that everyone is static, then fine. However if you have some curiosity, then a pretty good gentle introduction to growth mindset can be seen in this short 10 minute summary of an RSA talk. https://www.youtube.com/watch?v=Yl9TVbAal5s
It's actually opposite to adversity, the constraint is supposed to _help_ the creative process.