The same thing you wrote was said about previous managers.
When LVG was around, we hit top spot in the league at one point, then lost/drew a series of games. We did win an FA Cup, though.
He got fired.
When Jose joined, in his first season we won 2 trophies.
Then when Ole joined, and we won a lot of games initially, by big scorelines, the same was said. We won zero trophies.
So before you begin to congratulate each other on ETH's good performance, how about we win something first?
We are one of, if not the biggest spenders in World football and we haven't won any trophies in a long time. Those are the facts. If ETH really is one of the best, we should be winning a trophy this season and competing for all trophies next season.
I'm not saying that ETH is a bad manager - but we need to reserve judgement. If we can get 4th place this season, it'll be a good season for him.