you could offer this identical criticism to the vast majority of dub ten mutes you see, too. Ditto that for "dub flats" and/or "dub rodeos". How often is a dub cork 10 more like cork 7 to either flat 3, lincoln, or a barely off axis back?
Bobby's trip 14 was cork 7 to "flat 3" to "flat 3". You could probably argue it was cork 5 to sw rod 5 to flat 3, but that's just being overly picky.
The bottom line is that, like pretty much any and all inverted, or nearly inverted off axis tricks, there's subtle (and not so subtle) variances in how people throw them and how they look. To say that Bobby didn't do a true trip cork is I think a slight to him.
IMO, Henshaw's attempt at the trip 16 in Aleyaksa was the closest thing we've seen to an honest to god triple cork, but that's being too nitpicky.