Yeah at the moment they are, but the round of 32 games aren’t played until February. Dortmund could have a new manager and been given a kick up the backside by then.
Atlético’s transfer ban ends in January too, so they’ll have Costa available, and maybe other new additions. I’d imagine they’ll be favourites to win it.
It’s a bit unfortunate that it’ll be quite a challenge to win the EL this season. Man United basically strolled to the final last season.