For today's game, specifically, I understand it, as you don't want to risk your regulars getting injured in terrible playing conditions (torrential rain) when, at worst, you'll be tied for HFA after tonight.
In the last weekend series though, I really hope the boys put in effort, especially without Price or Stroman in the series. For one, HFA would be nice given our splits, and secondly, the boys need to remain sharp heading into the ALDS.