To Savaccs point, this PV is kind of written backwards. It would be more effective/beneficial if the discussion could name which new abilities you'd like to see on which lacking pets.
There does exist functionality in game already to get pets to use abilities they wouldn't normally have access to, although this doesn't resolve the main complaint of certain families being inherently less viable than others.
Also keep in mind that CH/Pets can be incredibly overpowered in several areas of the game due to CU-style combat, so I would recommend lobbying for the added pet abilities to make the less viable families unique, rather than combat min-maxed.
Also keep in mind, there are ongoing known bugs with some pet abilities, which may impact some peoples responses depending on what abilities get called for