Yes, let's force millions of last-gen console owners to buy new platforms just to play new games. It's so horrible the PS2 was supported as long as it was, wasn't it?
Get real.
...Is this sarcasm? Because that doesn't make any sense. Of course they should "force" console owners to switch if they want to play new games, that's the whole point of changing generation. In fact, this tendency to release on both gens simultaneously is very recent. How many games were cross-gen between PS2 and PS3?
Hell, I can't even think of one outside sports or racing franchises. Zelda Twilight Princess for Gamecube/Wii is the only example that immediately comes to mind.
I don't even have a new gen console myself yet, but honestly, I am baffled by this insistence on cross-gen and ports. It wasn't always like this at all.