I’m not sure. Oral from a man who is bad at it or doesn’t know what he’s doing is horrendous.
But he could have an absolutely amazing big Willy. Which might make up for the lack of oral.
I do think that the guys who are good in bed are good at oral, and love giving pleasure and showing off their skills. I think you’d have to consider the whole package, and whether this is just casual dating or looking for a life long partner.