You can't really rule anything out at this point. With Lucario, the spikes could be facing us. The tail could be behind the ponytail, or the ponytail could be covering the tail's "shadow"
We don't know if it doesn't have tails or not, the "ponytail" is covering the tail bone area
It could be showing us half it's body, and the pink shards Weavile has on it are on the ear, which you can't see from a silhouette.
Gardevoir can be female, Mightyenna can be male, it doesn't matter how feminine it looks. Does Kangaskhan really look that female to you?
Scyther->Scizor, they kept the same BST, they rearranged some speed into attack. It was a full evolution. Just because you evolve doesn't mean you have to gain 200 stats. if it gained 45, it'd make 600, making a Psuedo Legendary that's perfectly legal. I mean, Electabuzz was good, but then Electivire. Porygon-2 was a walling beast, suddenly, Porygon-Z.
Case in point, don't rule anything out, there are things that apply, and counters for things that apply.