Don't let the guys in blue (or black) hats from years past determine your opinion on the guys in those hats now. If you think the guys we have now don't have what it takes, that's one thing, but previous seasons and rosters don't project the results from this season.
Serious questions: are you counting the O's, Yanks, Sox, or Rays out of it? Two of those teams are 3 over .500, one is 6 under, and one 15+ under. At the moment, all are in worse spots than the Blue Jays, objectively speaking. Why do you think these teams have what it takes to blow by our guys in the standings? They are just as vulnerable to slumps as our guys. Minus some bullpen implosions, the Jays might even be 3 or 4 games north of they are now. I'd say performance overall up to this point is indicative of a competitive team vs. a flash in the pan. Luck has played its hand in a few games in the past month, but my own opinion of the club wouldn't be different had the Rays not thrown Gose's bunt away that night or had Reyes made that throw vs. KC.