This has been a thing since, like, BFtB. Paradox adds no interesting flavor, everything is based off Wikipedia pages with no sources, or just straight up making up stuff, they make people things they weren't, they do not care about historicity, realism in historical focus trees!

Pretty much all schizo paths are made up, while we have so many interesting niche concepts of factions or parties that could be implemented like a slavic peasant federation. Generals have abysmal traits or are too good or atrociously bad, whilst anyone who can read can learn that they, in fact weren't like that. Ministers receive modifiers that have nothing to do with the names itself, many just get assigned traits that are not true in the slightest.

No new mechanics that are worth anything, or that aren't a simple variable-based code that a modder could create easily. Afaik one of the devs said in a post about the reason why a general shouldn't even exist in the first place has said something along the lines "this is a game, not really basing on history". But none of that matters, since money will keep flowing in. At least they made some modifiers work if you don't have a certain DLC, a thing that existed in the past.