Mistwell
Crusty Old Meatwad
I think the ways that people will want to sort through the options start making indexes like that less useful than they could otherwise be. If I'm looking for healing powers or powers that reference symbols or fire powers or powers that key off of a given ability score or whatever, that's not going to be captured by that list. This is perhaps the kind of thing that is better served by an online compendium with multiple power types than by some pages in a book. In that environment, the word "warrior" or "rogue" would be broad enough that it would be pretty meaningless.
I think the issue here is defining the "role" of a priest. What is a party missing if it is missing a priest? Maybe healing, but not if they have a warlord-style or 4e-style bard, no? Maybe a party without a priest isn't actually missing anything? Certainly if 5e continues 4e's principle of "you don't need a cleric!" and expands it to even "you don't need ANY particular role!" as it seems to be, priests wouldn't do anything essential that isn't available to everyone else.
This is what I meant by you hand-waiving other people's ideas.
What he proposed is useful for some people, as an organizational tool. You objected that it is "less useful than it otherwise could be" and said it would be better as an online system. OK, but that's not a fair objection, as you can ALSO do an online system that covers even more data, but printed in the book you it would remain a helpful thing for some people.
And rather than continuing to play whack-a-mole with your objections, I am going to drill down on this one first. Can you admit that such an organization in the PHB might be useful for some people, even if there are other online systems that would be even more useful, and even if it's not something you personally plan to use?
I feel like every time someone raises a point about how such a class system can be useful without the harms you foreshadow, you view your job as minimizing that point rather than considering it. Can we at least get to one point where you don't say "Could be done better" or "Not helpful for me"? Or is it just that you've made up your mind and that's that?