Microsoft seems to be forcing developers to downgrade the ps4 visuals to match xbox one games through parity clause.

[Jaxyfoo]

I hope this is nonsense, but it is spreading around the net from better sources that the one the op used. 

http://gamingbolt.com/call-of-duty-advanced-warfare-aiming-for-resolutionfps-parity-on-ps4xbox-one-engine-detailed

Is the main source, but a fair few are pointing to a full article in OXM -

https://www.youtube.com/watch?v=WR_ho1Froqc#t=10

to name a reputable one.  I'm really against fanboyism and resolutiongate died out some time around last christmas to most sane people, but there is no way I can give good money to a company forcing fixed parity.  If that means they are striving for a stunning looking 1080/60 game across the board then count me in.   If that means I turn on my PC or PS4 and load it up to see a 900/30 game, then no thanks.  In that case they have lost a customer for life.