"Honestly, we're still not sure how we want to implement it." Based on what Garthic said, I don't think they do have a figured out plan for it. Besides, correct me if I'm wrong, staff didn't say we couldn't suggest a method.
You misunderstood me. I was talking about collecting summons for people who would want to hunt it, not using a supplier to get the egg dex entry. If the way to get a summon was a bit hard to get and expensive like Beast Ball then they could simply just use Supplier to hunt it. I'm aware how supplier works, that's why I mentioned it, but in the context of special hunting, and not unlocking the dex entry.
I personally don't see any harm in this being a bit challenging to get though I do see your point. I guess I'd just like to see an interesting feature regarding summoning than just "hey you unlocked another summon item, good luck finding it in a box!" (Perhaps, we could have an interesting evolution method?)
Dexing is perfectly fine (I know some do it for free) and I'm completely with you on that but I personally would like to own it without searching for people willing to sell.