I mean thats not totally incorrect. He exposed the club in the same way Mourinho did, less toxic, but it was suicidal and he lost whatever position he was meant to take on post manager.
That said, the ending to his reign as manager was the worst we've witnessed which is a feat in itself given we had Moyes, van Gaals boring period, Jose actively throwing games and Ole in the past.
Then again, we set up ourselves up for this because, for some weird reason, most of redcafe rated Rangnick highly and then got slapped in the face when a guy not known for his managing couldnt manage a football club.