[PS4] Knocked up and out of ISIC chamber

Playing as Shayne and Aurox in private story mode, at the end of The Algorithm when fighting ISIC in his last incarnation.

He bounced me into the air and repeatedly knocked me upward still further, such that I went all the way up and out of the chamber, out through the original drop-down entry tube and then to the side, there to fall into no-mans-land and die.

Seems like there should be a cap on the upward momentum? Or maybe the entry tube has a trapdoor a la Terramorphous so that entry is easy but exit less so?