I think it's not so much of a case of just straight hating on rogues as it is they would need to actually take times to redesign and implement a revamp to the cp point system. That takes people off other projects. Maybe it's going to be paired in this "mini rework" coming next expansion if it does actually come. If they changed it to being on the player will our cp's decay over time, decay at a varying rate whether we are in combat/out of combat. Will there be situation where you do some target swapping and all of a sudden your rogue stops building cp's. If FoK remains the same and your in a pack of 5 mobs each time you cast FoK are you going to instantly generate 5 cp's, are you going to generate only 1 cp, how does the system award a cp in that situation. and yes i understand that monks spinning crane kick generates 1 chi in a pack of 3 or more so they know how to implement that but changes like this will affect game play, and if it doesn't play well and even more people jump the rogue ship then that's less money for them. I'm just saying it would take them more time then i think they are willing to throw money at atm.
At the current state of the game with the loss of subs if they pull too much talent into reworking us and pull away from other features they are looking to release it would be a more problematic situation.
In all honesty i'd rather have my rogues 3 specs play differently where it would actually be feasible that a spec comes ahead on certain types of fights rather then 1 spec being dominant for one thing. If this could be achieved over adding cp's to yourself adding more variation to the game play then i'd be all for it.