without items his base stats are:
str 12
Dex 24 (not gonna lie, clearly i fudged this stat just to make him more formidable. everything else was rolled though)
con 13
Int 17
Wis 11
Cha 19
Crikey, those are some ridiculously high stats. Like, impossibly high stats. Even ignoring the extremely silly 24 Dex, how do you roll a 19 Cha? And a 17 Int for good measure?
It's pretty obvious from the Int and Cha scores (and the rest of the build) that this player is hardly min/maxed. He had his high AC handed to him on a platter. And if you're going to do that, there's no harm in giving an enemy an abnormally high hit bonus to match.