I don't know, to be honest, and I'm really not trying to just be cynical. I mean, you know Vince has knowledge of what his top guys do in and out of the ring, so to me there's a couple of possible things it could mean.
One, it could mean that he watched it, gave an opinion, and Vince could give a flying fuck because they're not really competition yet so he just shrugged and went about his day. ECW would talk about WWE, Heyman was pretty outspoken, and Vince actually even did some work with the guys. Was there any collaboration w/WCW? No, because they were serious competition. It's kind of like picking your battles, and maybe Vince just realized that there really was no reason to get worked up.
That being said, there's also the possibility he was putting out "feelers" for a couple TNA talents that would bring some refreshing shock value if they were to make the jump. I mean, he mentioned AJ and Joe, a couple of guys that are pretty solid, ME singles guys that would fit pretty well in their present direction. And Orton seems like the kind of guy you could "go to" that would have no qualms about doing something like that. He's also the loner, antihero anyway, so those comments wouldn't really look weird coming from him. I didn't notice any mention of MCMG, two smaller guys that are in a top tag team. They don't fit the WWE mold, and WWE isn't that big on tag teams at the moment, so maybe the comments were made as kind of a "feeling out" process towards talent they would be interested in bringing into the "E".
This brings me to Anderson. Could that be a "feeler" comment too? I mean, if Anderson honestly believes Randy got him fired, Orton's claiming not to do so would only really serve to irritate and anger Anderson further by denying it.
However, what if Orton DID get Anderson fired from the "E" (since it's been noted that he has had pull for quite a while now, contrary to what he says) but knows Anderson is simply speculating, or making an educated guess, but couldn't REALLY be positive Randy was the one that helped it along? In that situation he could be simply lying about his involvement to make Ken think that he really didn't have anything to do with it because Vince has mentioned wanting Anderson back.
This would settle any doubts in Ken's mind because it would make him believe that maybe Orton didn't have anything to do with it at all, and thus remove any hesitations or inhibitions he may have about coming back to the "E". This also makes sense because, for some reason, Anderson seems like the kind of guy (IMO; haven't met him) to wear his heart on his sleeve. I think Anderson on-screen isn't really that far from Anderson's attitude in real life, and maybe Vince thinks it wouldn't be that hard to convince him to come back for another go around.
Everybody's going to have different opinions about this subject. I do find it hard to believe, however, that when other guys have definitely been scrutinized for their comments on the internet or dealings w/TNA (Highlanders, anybody?) that one of the WWE's top dogs would do something so uncharacteristic of what the WWE has shown they aren't too fond of. I personally think there's an underlying reason, but again, who knows?