I don't think it was intentional to be honest, and even if it was, it's probably because Survival is still the top damage on any fight that requires moderate to high amounts of AoE - being the strongest spec for both single target and AoE is probably classes as OP, which is why demo locks got a small nerfbat too.
I'm currently playing SV on Maloriak (normal and HC), Halfus HC (always get whelps), and Cho'gall (would also play it on Sinestra and Magmaw normal mode (HC you cant kill parasites just kite them), and possibly conclave's Anshal platform if you insist on killing adds)
MM is stronger for pure single target fights by up to about 4k though.
Remember that when playing in 10mans, you may still need to stay SV to provide the 10% melee / ranged haste so a shaman can use wrath of air (if you don't have a shadow priest or boomkin)
Also keep in mind that nerfing aimed shot and buffing hawk will positively affect SV damage (unless they buff hawk through the MM specializations) so you never know, it may still be top DPS again.
Last edited by Del; 02-15-2011 at 04:09 PM.