Interesting how you phrased it. You didn't really imply that the MC can hurt/defeat anyone below EX. And really, you're probably right. We all know that 15k alone should probably not be enough to beat the strongest PHs. But to take a punch from the current MC Stats Max, without an adequate defense and not taking damage, probably no PH can do it (not even Yang Buddhist).
Tbh I know the stats don’t mean much anymore in terms of scaling, but I do actually believe that that the current MC purely stats wise (no aura) if maxed is actually EX level.
If we consider that the caps for Houtian come in 2,5 increments after MH (5k for middle, 7,5k for late and 10k for peak), the MC should be around EX level I believe. This is supported by the fact that the top specialists in stats have values like 9,5k or 9,8k in the arena and they are all strong PH (not counting Ruo).
Even Chu Muchen who is a member of the top 10 can hit you enraged with a technique which you do nothing to dodge (hits you normally if it’s a bet and with an ice technique if enraged) and if you crit on con which is like 12k I believe, you get zero damage and just kinda gasp.
Now he is dumbfounded by this, because a member of the top 10 hitting the MC with a technique on the chest with no defense, even if not full force, and the MC taking zero damage is very impressive and I believe it’s a feat that should be taken into consideration for this.
Now if the cap for PH is 10k (barring any alchemical help or talismans), then if the progression at least a little stable then 15k should be the EX starting point.
The only thing that would refute this is the fact that when you advance from mortal you go from 100 to 1000 and maybe the second rebirth does something similar but I really doubt it. Maybe it’s 20k but in that case it’s really interesting because then the scaling kinda breaks apart.
Because before we were shown that having more than 2-3k in a stat than your opponent basically makes you so much better than them that it’s pretty much an auto win, with the exceptions being people like Ruo with his EH fight against the LH but even then he advanced mid fight.
Also LH Ruo still couldn’t beat the Yang monk but he was top 1 and had incomplete Asura + Buddha transformation so it’s probably another exception.
Once again it’s hard to determine but I’d say having 15k in every stat puts the MC at either weak EX level stat wise (no aura) or at least gives him a chance to hurt them.