my first impression: terrible
after a few games i learned how to cope with it, simple, start an alliance with all the horde and not have them kill you. but in all seriousness, rogues are pretty gimped in pugs, the 20 min games are fun, 2v2s are fun (shout out to virtual and epic cross-q games) and im sure premades will be too.
as for crippling, its not logical to blizz because it wouldnt be helping leveling really, and thats the point of travel/aspect changes. as for icy, i've tried it, i dont think its worth losing the burst of fiery and is overall too unreliable for my liking. i really like my glyph of sprint in pugs right now, its really the only way to outrun druids in a race to get to the flag.
the fact that you played in only 1 game, i know exactly how you felt, i did too. just give it time and if it makes it any better just be happy you're not a ret pally atm, now you're even worse at 19 than before.. too bad rogues/pallies are my 2 19 twinks...