TBCC: Paladin Greater blessings on PETS

Im wondering if this is a bug or intended.
When a paladin does a Greater Blessing of XXXXXXX on a hunter pet, it just buff that pet alone, and not all the hunter pets. This might be intended and I’m just lost, but I find it weird.

Someone told me that a Greater Blessing should buff all hunter pets, but this is not what happened. Also happened with warlock pets, they needed to be buffed one by one.
And yes, I double checked and yes, it was a Greater Blessing, not a regular Blessing.