People shitting on mobile gaming makes me a sad panda. If you can't appreciate games in all different kinds of forms you're not a real gamer.
OT: I think that some of points made in the OP also apply to traditional console gaming but on a different scale. Games are popular for a while and then become a distant memory for mobile and console. How many people are still talking about Gears of War? Where are all the threads about Uncharted 2? They are a distant memory, people have moved on.
With that said I think that Nintendo going full on mobile as a source of revenue is a bad idea. However I don't see the harm in a simple F2P mario platformer that is used to drum up interest in the Wii U/new Mario games.
Platinums: Red Dead Redemption, Killzone 2, LittleBigPlanet, Terminator Salvation, Uncharted 1, inFamous Second Son, Rocket League