howandwhy99
Adventurer
Yes, but from what I understand based on many complaints, some DMs feel like arses if they ban something out of the PHB. Therefore, the PHB should lack anything they have to ban.
It's easier to ignore options you don't like when they're in a separate book you simply don't have to own/allow, then it is to cut things out of the books you use.
This reminds me of the mindset from 3.x where "just core" was the simplest way to avoid the 100s of d20 books that had come out with new prestige classes, core classes, feats, and everything else that could be really poorly balanced. I've felt that pain.
My suggestion is, the PHB should inform players "These are modular Options. They may not be used in your particular campaign" And then make sure to append that with what are Character Creation options, like Classes, Races, Feats, Spells, Magic Items, etc.
It would seem obvious, I know that these elements may not be in the game. But spelling it out deliberately should better enable groups to drop elements in the core books just like they can opt not to use everything in every supplement.