Do computer Pokemon trainers have Pokemon with EVs?

Question

Etc. Alder, Elesa, the youngster on route 1.

Answer 1

No they don't but all of their Pokemon are perfectly IV trained (31 on all IVs)

Comments

https://www.tapatalk.com/groups/nuzlocke_forum/official-natures-movesets-and-stats-t3452.html#p1630226 implies that some Trainers in the Black Tower and White Treehollow have EVs, but it doesn't say who. The statement about IVs here appears to be false as well -- every Trainer has a different IV spread.