Hunters are definitely very low on damage at the moment but blizzard will no doubt wait 3 months to fix it because apparently their sims show hunters are fine even though it's very obvious they aren't for anyone who has played 1 at level 90.
I noticed my hunter was struggling as soon as 5.04 came out. I was basically doing the same damage as survival before and after the patch and although BM got a boost it was still only doing about the same damage survival (give or take a couple of k dps). Most of the other dps in my guild gained 10-15 k dps with our warlock, boomkin and mage being the most noticeably improved. I hoped that maybe things would be different at max level when everyone had their full set of talents and abilites.... I was wrong.