There's another way of saying all that, and it's "Man, what the heck? There's nothing Mario Galaxy in these games?"
I don't think they're really ignoring SMG so much Brawl and MKW were made too far in advance to throw in anything Brawl-related. I mean, Galaxy is a pretty significant Mario game that Nintendo's proud of, so I figure they'd have references if they could.
But, of course, another part of me wants to say, "what do you mean, they 'ran out of time?' No they didn't? Great, now these game references are already out of date!"
Help!