Why is Canada Ploos there lol, caught me off guard.

Next episode is the last for ash’s story as a new series will focus on new characters

After all that it still doesn't trust human.

So the movie is canon now?

They always were, way back in the Johto series, Ash mentioned encountering a Lugia on the Orange Islands, so the movies were always canon.
Aside from the last three, they take place in sort of an alternate timeline.