CastroTurf: Miller shut down

Top prospect Adam Miller's Minor League season is conceivably over. According to head athletic trainer Lonnie Soloff, Miller will be shut down from throwing for eight weeks after having surgery performed on the middle finger of his right throwing hand Tuesday. After eight weeks, Miller will begin a return-to-throw program in either Winter Haven or Goodyear, so the odds of him coming back in time to rejoin the Bisons are slim.
Apparently, he hurt this finger last year and tried the rest/rehab/no surgery route and that didn't work. It seems like they were hoping he was going to help at some point this season. Just how good is Miller? Pronk, do you have any thoughts on him? Hopefully, this injury doesn't set back his development too much. That's always the concern with young prospects.