yeah they are, currently showing 19 rogues losing Shadowstep, Gouge, Sprint, Backstab, and Instant Poison. rogues are getting Deadly Poison but imo it's rather weak at 19 and going back to sharpening stones may be better? talent points they get a 15 are trash compared to other classes.
will no longer have SS to close gaps after being feared, scatter shotted, etc, also when you trinket no longer will have Sprint to gap close on target and once there no longer a Gouge to use for set-ups or spell interrupts
gimped, blizz will not give rogues ability to wipe players using Subterfuge, 3 secs won't really matter cause rogues most of the time can ambush, sinister stike and eviscerate by the time a opposing player reacts, that also would be the time you will be out of stealth with no energy but with no more Shadowstep, Gouge, Sprint
i leveling my 10 rogue on CATA mostly due to Sprint back then got moved to lvl-16, along with other abilities lost at 10
in MOP, panda w/sleep racial, goblins w/jump racial, worgen w/spint racial will have best chance