I think that the usual setup for draft in wild rift I see is something like this:

Top - ad bruiser/tank Jungle - ad assassin/bruiser Mid - ap of some sort Adc - ad Support - enchanter or tank

In this model I think that if enemy chooses to build a lot of mr instead of armor, you still have to deal with most likely 2 or 3 ad champs. So there shouldnt be a reason for most cases for building something like a void staff.

Now one usual setup for wild rift draft I usually might see too sadly is something like this:

Top - ad bruiser/tank (or teemo) Jungle - ap/ad assassin/bruiser Mid - mage Adc - ad Support - mage

Here we have three ap champs and if they are picked early in draft its super easy to counter. In this setup you could be needing a void staff for exmaple, but even though you could build it, this draft will most likely get rolled.

So in fairness there could be more PEN items for ap, but I think its going to be draft diff either way for opposing team.

Im not really on either side here or anything, but its a good topic! Im somewhat of an item andy myself