No they don't, in fact NT is the best bomb for Frost right now.
You actually named the one talent tier that does have specific caveats depending on which spec you are, like the varying Brain Freeze proc chance on the living bomb tier that you just mentioned yourself.
Talents have more specific effects for specs if they would have a deeper impact on the rotation than the spell would for other specs.
I do actually think that mana should be removed entirely from the level 90 tier, but while that isn't the case then it makes no sense to leave it identical for all three specs when Arcane mages use mana as an important mechanic and the other two do not, if that will also lead to the Arcane rotation being made more uninteresting.
And it would be! You'd evocate even more frequently if it was capped at 60%!