Looking at AL ranks, Seatlle ranks 5th in pretty much everything as a team... wRC+, Def, fWAR... run differential they're one of the 7 teams with a positve run diff and its pnly 8 runs different than the Jays. I dont think it's a stretch to say they're a solid wildcard team.
Side note, all wildcard teams have a better record than Cleveland. God the Central sucks so much ass.