After 5 years of gloating over PS3? Naaa, it's joyous Karma
Ehh...I think it ends up hurting everyone, not just Xbox fans.
1) The baseline is lowered for multiplats, which may not directly affect the PS4 versions, but it certainly doesn't help them.
2) I imagine at some point down the road I'll pick up an XB1 for some exclusive. So it sucks for me knowing that it'll be a $300+ machine that I'll be buying only to play a few games, rather than have it as a viable alternative to the PS4.