I would love class-specific barks as well! Companion barks are great, especially Gale’s, but Tav’s are too generic for me.
On the contrary ...
Class-specific barks are usualy recipe for disaster. :-/
Especialy with custom character ...
Take Rogue for example ...
Can be anything from Beggar, to Thief, to Mafia Member or even Boss eventualy ... but also simple wanderer, Assassin with his own moral code or noble Blade dancer, who focuses on his speed and cunning rather than strength and endurance ...
Bron from Game of Thrones was great example of Rogue ... and he was a Knight.
How would you create class-specific bark for such character?
Or take Barbarians ...
When you say "Barbarian" first image most people have is primitive, savage, bulky, smelly, half naked dude that have more scars than brain cells ...
And yet, the most well known Barbarian ever, Conan, was a King.
Paladin ...
I shall borrow Warcraft here for example ... not going too deep into story, if you put Silver Hand paladin, Argent Dawn paladin and Scarlet Crusader next to each other ... you have completely different characters ...
Im not too well educated in Faerun factions, but i would bet some overzealous paladin order who would rather exterminate humanity than let it fall into demons hands would be there aswell.

And if you just look at Arcane Traditions for Wizard ...
It should be quite easy to see that people who specialize their study to Evocation, or Abjuration ... will most likely have different mindset than Necromancer.
