When I played Isle of Armor DLC for the first time I am 100% certain there were TWO Wailords in the overworld (one was gigantic and the other was still very big). I played the DLC again in my other version and there was only one Wailord. I noticed in all of the screenshots I've seen of it online there is only ever one Wailord. Am I missing something here?

Pic attached isn't mine. It's just some Wailord following its trainer.