I love how over the top our reactions are here, he's not bad in the air but they played against a fair few longer balls and Bennett is an absolute bull. Unless your expectations are that Tuanzebe should win 100% of headers I think he did fine, he also wasn't 100% fit. I'd also argue, given the playing style of many Championship clubs, his aerial ability will have dramatically improved this season although I haven't watched Villa regularly so can't say for sure.
Our issues defensively re aerial weakness stem more from DDG's GK style than having individual CBs who are 'weak' aerially. We need to stop getting suckered into these buzzword rabbit holes likes 'aerially dominant CB' as if it'll fix all our defensive issues overnight. We already have one of the best aerial CBs in the league in Smalling but the issues remain the same whether he's in or out of the side.