The Crimson Binome
Hero
You don't speak for most DMs. Nobody here does. Most DMs aren't represented on these boards.Talk for yourself.
Most DMs want PHB content to be good enough to be used as is.
Many use feats. Very few allow feats but first double-check WotC's work.
Asking DMs to pre-screen every option individually is
a) dismissive b) ridiculous and c) asking them to do WotC's work
In order to play 5E as it was intended, screening content is explicitly the job of the DM. If you don't want to do the job they give you, then you have no right to complain about the game not working. The game works as the designers want it to work, even if it doesn't work as you (or I) want it to work. If you want it to work differently, then you are empowered to make it so at your own table.
They sold you a bag of parts, and if you ignore the instructions, then you can't reasonably complain about the end product not being functional. You are certainly within your rights to complain that they should have sold you a finished product that worked right out of the box (and I would agree with you), but that doesn't change the reality of what they sold you.