Now that's just silly... just because Rom identifies the man as Vic doesn't mean he -is- Vic. For all we know he's Felix and Felix modeled Vic after himself. Or he's simply a man that Felix used as a model for Vic in general. It's not like he ever identifies himself as Vic.
He doesn't, no, but Bashir does. He clearly yells "It's all over for you Fountaine!"
So, whatever the explanation, the guy is clearly Vic.