I would say the prospect meter on him is up from where it was coming into the season because he went up a level and has maintained the same peripherals despite better pitching. But it is a nice story, though he hasn't really vaulted into a big prospect status.
With Cingrani, I actually have explained why his stats are outstanding. You either didn't read it or didn't buy my idea. But I will tell you again in case you missed it. He has the best fastball from a Reds minor leaguer I have seen since I started doing this. It is better than the one Chapman had in the minors (at least as a starter). While it isn't overly fast, it is 90-92 with outstanding late sink to it (honestly resembles a change up with tumble on it) that he has pinpoint control of. He can throw a plus pitch exactly where he wants it, 90% of the time. That is an incredible weapon, especially against minor leaguers. However, I have now seen him throw over 30 innings this season and not in one outing have I seen him throw his offspeed stuff to the point where even 50% of it was considered a good pitch. But, at this level, he can get away with it because his #1 is simply that good.
Buy it or not, I don't really care. But that is where I sit with regards to how Cingrani has put up incredible stats, but still isn't an elite starting pitching prospect.