I don't see the problem. The ports aren't watered down; many of them have extra features. The only poor one seems to be ME3.
ZombiU is not getting 'mixed' reviews. It's got a 98, a 92 and a 7 (from EDGE, who are oft harsh). The only 'poor' one is the one from Gamespot, but it's like saying Halo 4 had 'mixed' reviews because of the one from Quarter To Three. It's far too early anyway, but a metascore of 80+ seems likely.
And Rayman Legends is an easy game to get into, and can be played in a few minutes, but one which shows off the advanced graphical fidelity, the play on Gamepad function, and the touchscreen functionality. So that's why it is included.







