Well, I think I understand the argument: basically, it's fuck Guile (or more generally, charge characters).
That is to say, you can either say that fighting Guile/Blanka/Honda is a fucking irritating chore but they represent a legitimate playstyle and so you have to work around that, or you can say fuck Guile and go play KOF where charge characters like him don't really exist. For what it's worth, if not for Viper and KOFXIII's shitty netcode I'd do that. I could see how someone could find the very existence of a Tekken-like character sufficient that he'd rather not play DOA5 at all, but that seems kind of extreme. Rig's seems more a shitty Sarah than a Tekken clone if anything.
It's not a terrible way of putting it, I suppose. Not that I'd quit because of Rig or that was what was even being said by the original poster (who was not me). But that certain systems of play are legitimate/desirable (load the question as you must) or not should be a fair question, if we're talking about the uniqueness and merits of the system. Because if DOA's system is not made to be unique, we are left with arguing its merits on the brand and... ooooof, that's just a freakin' mess, and really would not be worth advocating for.