#3. The match ends via disqualification because of interference at Survivor Series
The thing about Survivor Series is that a win is still technically a win, which means that someone from RAW could interfere in the match and attack Sasha Banks but SmackDown would then take the win.
This means that whoever costs their team that point would become an enemy of their own brand, especially if the outcome of the show is decided by just one point.
There are several women who could interfere on behalf of RAW and SmackDown since these are the two main Champions on the brand and they will be ripe for someone to send a message.
Many points have been won at Survivor Series over the years due to disqualification, but if these stars are smart then they will wait until after the match when the win has already been decided so that they can then send a much clearer message. It would also be beneficial to attack someone who has already competed in a lengthy match since they're much less likely to fight back.