I agree that most of us doesn't have the opportunity to visit the conferences
in person and that livestreams aren't the best way of providing the talks to
the masses either because of the poor recording/encoding quality as we
experienced it in the past, and now again.
One of the possible solutions would be, in my humble opinion, for Rubén to
always ensure before his talks that "someone" makes a proper video recording
(even a simple audio recording through microphone output should be sufficient
enough). This time it looks like this have happened, so we just need to wait
for the results.
As a side note, always do remember that Trisquel is 99% developed
single-handedly by one person (Rubén), so this means he's extremely busy
with the development at times (don't expect him to be perfect).