Yes that's true, but it still helps and I find it fun to do. If you don't think that's fun why even play a class with a pet? It's not like the DK/lock pets aren't retarded :P
And I don't know if I was clear (my bad if so), but managing your pet well as BM is important and can make quite a big difference.
(It's fine if you think it doesn't make a difference, just means to me you haven't actually tried it, or you didn't do it properly).
Why not play a lock then? Warlocks have a pet AND they are ranged.
A hunter can be melee, why does everyone find that so strange? We're called Hunters not Archers / Rangers, we hunt, no reason to not being able to use melee. Even in vanilla we had melee skills (even though they were quite useless :P) and the playstyle is SO different from Death Knights, how can you even compare that...
That's like saying why don't Survival Hunters (the old version, ranged) just re-roll to a Mage? It uses fire skills too! (explosive shot / trap || Fireball/Pyroblast & Flamestrike) and it can even shoot! (with a wand but still).
If you think like that they might as well just create only 1 class with 1 healing, 1 tank and 1 DPS spec (being able to use all weapons and such, so you have all the freedom of choice you want).
If you think that's more fun, then do so, no one is stopping you
I for one don't play MM because I don't find it fun, even though it's the best spec currently. Not going to change class just because I don't like 1 spec >.>