Look at it this way. Something is made and presented (1E). This has its ups and downs, but, overall, it works. I might bitch about triremes or the omnipresent Guild, but these aren't dealbreakers, I can simply modify those in-play when I run because changing these things to make sense does not touch any load-bearing pillars.
A new boss takes over and starts cranking out retreads of the original thing, except badly done: little to no cool new stuff, they manage to leave out actual cool stuff from the original set, the rules flat don't work (Dragon-Blooded, Sidereals, Monk, Fair Folk...) and what new stuff does exist vacillates between boring and terribly unfitting, which you can identify because you already have all of the fluff they're busy reprinting and amending (badly).
So yes, 1E and 2E are basically the same setting, in that 2E's setting is largely the same as 1E's setting, plus dumbshit bits and bad mechanics. This is not mutually exclusive with rejecting most of 2E's books for being shit. You simply, in that case, revert to 1E's fluff - minus the dumbshit bits.