Yorick ghouls interaction with morde skills(specifically W)

So after playing Yorick into a morde, I realized he was getting full healing off my ghouls. That means when I set up my combo with 4 ghouls, he gets 200-760+1.2 AP healing by pressing w twice just off ghouls alone. I am okay with him receiving the minion reduced healing off ghouls, but healing equivalent to hitting 4(5 if I attack) champions with W is quite frankly, stupid. Given that he also gets full shielding off ghouls, it is basically impossible to win trades between the half health heal, and the full shielding he receives.

I've looked, and as far as I can tell, this is the only healing that is reduced on only minions.

I would also suggest taking a look at other summons such as with zyra plants and malz voidlings.

I would ask that yorick ghouls count as minions for the purposes of morde's kit, although there may be other champs which have some other unintended interactions.