the point is both specs(bm/surv) are pve viable.
If you enjoy being 10% behind SV on the mostly single target stuff and 40% behind on anything with multiple targets; as well as behind just about every other class and spec; sure BM and MM are "viable."
This. Beast worked last tier because of the high amount of straight single target shoot outs or burst windows, and even then you still played Survival a fair amount. Given the mechanics this tier and buff to Survival, Beast is largely a dead spec. Marks is still garbage.
Blizzard has admitted they would take steps to boosting all 3 Mage specs in PvE if they were too low. Why won't they do the same for us?