From the moment Lex decided to use his original identity to when he teleported and walked all the way to where Marlo's wife, Sophia was, he had already gotten several notifications from Mary about tasks that needed to be handled by him.
It may have seemed like the Inn had been functioning fine in his absence, but the truth was they were barely holding things together. It was a ship at voyage having its leaks repaired using duck tape.
An undeniable truth, unfortunately, was that the quality and standard of the Inn had fallen. It was not Lex's fault, for he had been doing his best to keep up the expansion of the Inn as its presence grew in the universe, but he expanded from having a few thousand guests at any given time to a few million in the span of a few months.