True, and more I think about it, more I want to retract my original statement. This ISN'T warranted, and looks to make the proc based spec feel significantly more clunky. For example, pvp one now must avoid opening with flame burst / rocket punch before the initial rail shot (that's dependant on a dot, ie an opener) or gimp their burst with an accidental proc. As you mentioned too, there's now a static rotation to WHEN you fire your rocket punch.
So what have they done? Locked everyone of a spec into a very rigid skill sequence/cycle, made combat more boring, and potentially turned the pure dps spec into a lackluster one with no redeeming value.
As a pvp player, I'm starting to think this idea of coupling proc based talents (the fun ones that make combat unique) with a cooldown is a terrible one. BW seems to think opposite. I would wager this is PvE rotational boringness coming to bear on the game, and I don't like it, honestly.