Posted this last year but still relevant to my feelings on this, though with exotics still similar in WoD, unlikely to happen any time soon.
“ Personally, call me greedy as well, but I'd love to see BM hunters have the ability to have 2 active pets at once. I just think it would make BM be visually different. I know they have exotics atm, but if exotics were removed (well the label) and let all pets be tamed by any spec and give them just 1 ability, then BM Hunters would still get 2 buffs. Just lower their damage so they are not too OP, tweak, adjust, etc.
I just think it would look and feel awesome to have to beasts running on either side of a Beast Master “
That said, for me it's more of the visual appeal of having 2 pets rather than some addition to game play. Also thinking about it more I would be still very happy if they just somehow made this a BM only Minor Glyph. Having the 2nd pet just copy/mimic your 1st pet but doesn't deliver or receive any damage, nor can be targeted. (similar to when you use Elixir of Wandering Spirits and turn into Che Wildwalker AND you get his pet tiger as a visual companion) Have the glyph use the model/visual of the pet in your 1st stable slot, unless that is the one that is currently active, and then it will use the 2nd?
.... well, one can dream