Okay, one scenario where RBG’s death works to our advantage.
Massive election fraud is discovered in a swing state and the Trump campaign brings suit. Lower court finds for Trump and orders illegitimate ballots to be thrown out. Biden team appeals to SC. With Roberts comped, the vote would have been 5-4 in favor of Biden. With a 4-4 tie, the lower court ruling stands. Trump wins.
Problem with this scenario is if the Biden crooks get a lower court ruling and it goes to the SC, then they win.
At least with the 4-4 tie, we have a chance a lower court ruling for us will stand.