Yeah, that's why no RPG other than D&D (or D&D clones) gives you a wisdom score.
Wisdom wasn't related to perception in 2E; it was just "the caster stat for non-wizards". It became the stat for perception/insight in 3E just to make it less of a dump stat for people who weren't a divine caster. And the result is that clerics became better trapfinders than rogues are. It's weird but it's legacy, it's really not going to disappear now.