That isn't true. The whole pre-season wasn't really great at all and while Mainoo certainly was a positive spark (but mostly because of his profile of being a youngling and a relative unknown entity), but it wasn't stellar or anything. And our performances didn't really have enough height to even do a nosedive.
He had a fantastic game tonight, really hope we will see more of him from now on. But lets keep it grounded. Not too long into the future and opponents will be prepared for him. Boxing him in, being physical whatever. Thats when we will see if he is something to build up from.