[sssbox]

I believe that you can see the first red card (G32) at around 3:59 in the second video, the red robot seems to push one blue robot into their zone and also runs into a second blue robot who is already in the zone. It is not good enough quality to see what is happening in the red alliance station towards the end of the match, though there is definitely a good deal of commotion (which says nothing to whether a penalty was committed or not, but it could have been a factor if the coach got caught up in the moment and made an err in constraint trying to help out).

Also, I agree that it was unfortunate that the score was displayed without/before any notification of the disqualification, the announcer might have in an ideal outcome, announced that there was a red card before the scores went up, but it was a fairly unique circumstance that the volunteers involved had probably never had to deal with in the past. Instinct might have been hoping that the scoring system would take care of the dirty work for them and show the red alliance as DQed and the blue alliance as having the win, it always sucks to have to deliver bad news.