Well, considering that the current Ruo is still in late Houtian, I’d be surprised if the MC couldn’t handle him when he’s not transformed, but I suppose that might change once Ruo reaches Peak Houtian.What I said isn't based on my personal thoughts but the author who said that mc (not current mc btw who is stronger and has Asura) can handle current regular Ruo but for full power we would need to run around until his transfo end because it is still extremely time limited so he hasn't found a way to bypass that. Also anyways almost all qi options have another physical stats one which has the same effects so that isn't true and like in all fights author isn't gonna take in account those who have like 5 qi left
Also for the physique my point isn't about that but about your whole fairness thing because Ruo has more op things