Considering that the bullpen had to pitch 8 innings in the 24 hours following that game, I'd say Below's appearance held quite a bit of value.
And if Wilk was in LR we could have gotten 4 or 5 innings out of him, plus Porcello was pulled early, he should have been left in for 100-110 pitches just to eat innings and save the bullpen.
I'd rather Below give us 6 innings of shut out baseball in a close game rather than one we've already lost.
It's not hard to find somebody to eat innings out of the pen, and when you're down 8-0 it doesn't matter if he pitches 6 shut out innings or 6 innings and gives up another 6 runs, the quality of those innings means pretty much nothing.