Warlock pets with sex: really necessary?

I've been trying to write for some days something about the current Call to Arms discussion, but so far I haven't got any valid proposal to increase the number of tanks specially in PUG runs, when I saw this announce.
While it says it's something set in the long run, is it really worth dedicating resources to a cosmetic issue when there's a big nasty problem right now in WoW and the proposed solution is clearly not fixing anything?
Well, with a company the size of Blizzard it's doable without hurting other more important developments, but why not dedicate efforts to other cosmetic issues (after all, the gender of a demon pet it's only a cosmetic issue) that would affect all classes and not only warlocks? Several come to my mind:
- Update graphic motor to a newer one, allowing better performance or more details. The new water and sunshafts look great, but WoW appearance feels still the same as 6 years before
- Update old character models (read neither worgen nor goblins) to higher polygon count, making them more detailed
- Update textures to higher definition ones (as an example, check how Elementium Girdle of Pain looks on your character selection screen. It's really a pain of big square pixels)
- Allow models for some height and weight customization, so not every race looks the same
- Allow crafter gear to use different colours (I'm tired of the old Green Iron Shoulders, I want a red or a black version)
- Add the frequently asked Appearance Outfit, so you can have any look (ie, the T3 armour set) while wearing your current gear

Things like that would benefit all players, not just a part. But I must say I'm intrigued how a female voidwalker will look like (a blue blob with boobs? or maybe same model as current but pink coloured?), or a female Infernal (something like Therazane?).
The only things I ever wanted to change in warlock pets are the Felhound (these extra upper arms/tentacles look horrible) and the Felguard (they should equip different weapons and not always the same boring Arcanite Reaper plus also get different colour versions of the demon, they're already ingame).