As much as I'd love to keep posting here I don't have the time at present so just going to say um...
I never intended it to be a colossal moth thing, only similar in size to other pseudo-legendaries. Preferably slightly shorter than Dragonite but bigger than the rest. 6'11" is ideal. The point I was making was that as something of apparently (I say "apparently" because I'm basing this on the way it looks) divine origin, it should at least be big, or big enough to merit 110 HP and 99 Def.
EDIT: Also RE: "Conventional Pokemon", the pseudo-legendaries are hardly conventional either. The difference between legendary and pseudo-legendary is literally only a) ability to breed and b) possibly alternative sprite sheets, if gender changes are implemented. I don't see how anybody can not see this as having different genders and being able to breed - after all, Sigilyph can do it. It makes perfect flavour sense for it to breed, really.
Tbh it makes little difference whether or not CAP4 is legendary or pseudo-legendary, but pseudo-legendary is the only one that doesn't constrain movepools at all. Therefore it is the ideal default choice, really. Plus prevos make everything better.