It was a badly written tweet, but in fairness to the man, I think it is relatively obvious that what he meant was that the notion that Michigan isn't closing the gap and won't take over is a mirage, hence the reference to building a powerhouse.
We may still think this is wishful thinking, but if the exchange was like this (which is almost certainly what he would mean) what reaction would you have other than that you disagree:
Recruit - why should I go to Michigan? Ohio State owns you, I'll be playing second fiddle every year.
Chaser Loserovich - Don't get distracted by the score. Michigan has gotten better every year under Jimmy H. and he's building a powerhouse. We'll own them soon enough.