All of the episode titles in this style have been either relatively literal (the Darkest Day episodes) or non-specific but on point for the semi-finals.Episode title is an insult or perhaps a nod of what's going to happen? I am unsure.
Both Finals episodes are likely similar in that sense. Torrent I would guess refers to the battle starting with Leon launching a furious assault that Ash struggles to withstand, and this episode is about Ash being on the backslide and looking like his battle will go the same way as Leon's matches before him. Then the likely third part will mark some sort of rebound on Ash's part, whether that ends in victory or a valiant but ultimately failed effort.