I'm just not seeing the mainstream love for Mauigoa that you are, outside of Zierlein (and now I guess Thorn, who I'm not familiar with). Every time I see an expert talk about him, they kinda hemm and haww, say he's probably the best in this draft, place him somewhere near the middle of the talent pool, and no one seems to have true excitement for him.
As I've said, I don't have the time to put on every snap he's ever taken and judge entirely for myself, also, I don't know if I'm a perfect OL talent evaluator. But the consensus just doesn't seem to be there that this is some can't miss talent.