It's super frustrating because we know he has the potential for much better. 2014 was no mirage. He just used all his pitches well and worked all 4 quadrants.
Based on the location of his pitches and predictability of his routine, I'd suggest that he was lucky he didn't give up more hits. There were plenty of lineouts as well.
He better not come back out for the 6th. This was a very predictable outing for Stroman. Pitch to contact, trying to nibble low corners, and using 2SM in many 2 strike counts and you get smashed.