Not really though, Tai made it to #3 in the heavyweight division with **** all kickboxing skills and no wrestling. Heavyweight is weak af really, most guys are between 145-185 that's where the talent is. The technical skills of a Volk/Holloway/Islam/Leon etc are miles above the higher weight classes outside unicorns like Aspinall.
I agree with you, that’s what I meant, the lower weight classes are way more skilled basically. Your example of Tai is fair, he got by on big punching, heart and chin, his equivalent at BW would be nowhere near the UFC.