Everyone else, sure. But you never root for UF and FSU to be successful, no matter what. Miami's strength of schedule really means nothing. If they win the ACC, they're going to the playoff. If they aren't in playoff consideration, then who cares about strength of schedule? The bottom line is this....the #1 priority is winning championships. So, if that's in play, then sure, I'm all for the strongest possible schedule to bolster a resume.
But if that is not in play, then the #2 priority is beating your rivals and keeping them as weak as humanly possible. Having them win the games other than when they play Miami does not accomplish that. So you should really root for them to suck no matter what. If Miami goes 11-1 or 12-0 and beats Clemson in the ACCCG, they're in the playoff no matter what. And if they go 10-2 or 9-3, who cares what the SOS metric is? You always want your rivals to implode. No different this season.
As far as UVA/ND, I didn't realize that ND played UGA the week before. You make a good point. That may be a bit of a trap game for ND.