After cold crashing and fining with gelatin, I never thought it hurt to throw some dry yeast in the bottling bucket. Its allows for the beer to be carbonated more quickly, at least.
High-floc strains (English, ringwood, etc.) can almost completely drop out in a couple of days at those temps (esp. with finings). The small amount left will either not be enough to carbonate, give inconsistent carbonation from bottle to bottle, or take a LONG time to carbonate.