Despite it being a slight PPS loss, I just delay that PS + Jump into the BFB. Got no time to play it risky. I do end up with 1 less Jump throughout the entire encounter, though.

If you have higher SS, you can DEFINITELY use the PS + Jump there, especially if you're doing the "DPS optimised" strat, by having x2 Melee + MT on the boss and the Purple blob off to the left/right.