It's a tiny nerf to BM Hunters with Spirit Bond. Other than that, it's either a nice thing or a lousy thing, situationally. And as such it's probably a change not worth a lot of development cycles, while there are still Pets out there without a class ability, while the Consortium still isn't mailing out the promised gems, while the Tomb of Lights quest has been broken since the release of TBC, and while a pile of other bugs and issues that actually impact play are left unaddressed.