I’m only playing devils advocate here but the counter argument is society is very complex and it takes time to understand it to a sufficient degree. Short term limits would mean a Congress making impactful decisions without fully understanding the ramifications, or they just rely on unelected bureaucrats and lobbyists to tell them what to do.

The counter counter argument is that you could be a career politician working your way up: two terms at city council, two as mayor, two as governor etc…and by the time someone is voted into the national stage they presumably have decades of experience.