Truthfully, I feel making this a premium option is completely fair. Something that is work-around-able but a pain in the (insert word i am not sure i am allowed to say) if you don't have have the premium. Gives incentive to buy premium but doesn't make someone unable to enjoy the game. That is what premium accounts should be in my opinion.
From a professional (I can't think of a good word) standpoint i say go for it, if code and tiime allows. From a non-premium member standpoint, it doesn't hurt the way i play at all so i won't dislike it if it gets added. I just won't be excited as it doesn't affect me. (although the message needs to change from battles and pound, I really don't want to accidently send someone to the pound)
I, actually, really want premium, only i don't want to pay RL money for it. I made a 'don't spend the money' rule with myself when the last site i spent RL money on closed (so basically i lost everything i spent money on). I work extra to get more regular site currency that i can trade with people to get the premium items.
Like i said, i want the premium account, I just refuse to have the money to get it. I want that shortcut in explore (so tedious), the search all pets thing, and will probably want the maneuvers thing for the battlefield. The full genealogy thing actually really really really irks me that it isn't available to everyone. At least let people see their own pets full geneology and hide others if you must. This is a breeding game, we're (at least me) mainly here to make pretty pedigrees for our favorite pets. I've been planing on making a post about it sometime when i started having 2nd or 3rd gen pets where i would like to see that pedigree. In that post i was gonna give some ideas about other premium bonuses thoughts i had. So that way it doesn't just feel like i am complaining about unjust fairness and all that. xP
I got off topic a little XD The important bits are the first and second paragraph.