One bad start? He's had starts of 5 runs in 3.1 innings, 5 in 5.2, 4 in 5, and 7 in 5. Those are five bad starts.
That's 4, even by your own obviously biased count. Pretty convenient that you say runs and ignore earned runs. Maybe, just maybe, the defense giving up 4 unearned runs in that "7 in 5" BS is something you should take into account if you're going to follow baseball. He had a 3.29 ERA with the Nats going into last night. I'll give you 3 bad starts in 10, and I'll take that from a 5th starter without hesitation.