That is the intention, with this mod it is no harder for any nation around the world to get the institutions. Vanilla often resulted in player non-European nations getting the institutions before most Europeans. It doesn't make sense for them to have access to the institutions so quickly, the mod makes it so it's harder for them to have it and changes the balance so that the non-Europeans fall behind on tech but not development unlike vanilla which is the other way around, because the Europeans can develop so much more than the other nations.

The institutions are a pretty bad mechanic in the base game, with the first 4 ones not having an alternative adquisition requirements for a country doing well, so they become an artificial annoyance.

Your not wrong, they don't make much sense from a realism standpoint. They kinda do but it's a stretch, but then you have the problem of how has Korean spawned the renaissance independently? That just doesn't make sense.
So what I have is nations doing well will be able to get institutions but over 20ish years rather than instantly. Allowing them access early still but not earlier than the nations next to where it spawned.