TBF, the guys who would ideally be taking these starts are all pitching in the majors right now (ie. Faedo, Brieske, Hill) because of injuries or guys being MIA (ie. Mize, Manning, ERod, previously Pineda).... two of their other options (ie. R. Garcia, Wentz) are injured, and another option clearly isn't a better option than Hutchison at the moment (ie. ElRod)
I guess they could theoretically reach further down and bring Reese Olson or Austin Bergner or Chance Kirby into this mess, but I'm guessing they do not think they are ready.
At this point, I'll take the fact that they have barely had any scheduled bullpen games during a year where they've set a record for the franchise in terms different starters as a sign of progress, even if it involves Hutchison getting starts.