Interesting version of bassai (I call it palche de, but whatever). Not much snap, though. You say you had a hurt knee, though, so I guess I can't expect too much stress. One part of the body is off, and it's all going downhill.
I'm curious, though, in regards to two differences between the version I practice and yours:
(1) The two moves from a wide front stance after the sweep (following the double-punch series at the end) are, for you, two inside-outside blocks, if I read you correctly. For us, we've just swept the opponent, so they're two backfist strikes to the downed opponent (hence why we get so low). Is this one of your adaptations, or is this common to Japanese styles?
(2) The double-punches near the end are, for us, all done in the same direction, returning to position after each one. You do them at different angles. I see the utility in that, of course. Could you elaborate on what exactly you're thinking about as you're moving through those?
Always interesting to learn from different styles.