Santino is hardly a candidate for "future of the company", and as such, Austin Stunner'ing him isn't going to hurt anyone.
I don't think he means from the aspect of being the top heel or anything, but once all these older guys start retiring (or dying, in the WWE's case), we'll need new blood in there to keep storylines moving. I'm not saying Santino will eventually become that guy, but you just never know. Stunnering him back to OVW won't help that. Personally I don't mind, I don't care for the guy, I'm just saying...