No way, online would matter to a tiny fraction of the people who would want NSMB, and it would probably fundamentally change the game, and extend development time.
Punchout it would go in, that game was lacking in content, online multiplayer could have made it more worthwhile, but I think WSR and NSMB are good without it, and the sales show.
Online is not as important as some core gamers think. Local mulitplayer is the right thing to focus their efforts on for the moment at least.
They should support their peripherals more, but that's hardly an example of 'laziness', they have limited resources after all. I don't think your other examples are signs of 'laziness' either.
A game I'm developing with some friends:
www.xnagg.com/zombieasteroids/publish.htm
It is largely a technical exercise but feedback is appreciated.









