We don't have anything to lose. It can't get worse than -17 B, two lost scudetti and obviously no European Cups. For *us*, at least. Who cares if Figc gets banned from the cups for a while. It would only mean that Inter&co will have to give up the CL money. Not a big problem to me.
The real mess, for FIGC anyway, is postponing the Championships. It means paying damages to Tvs, Sponsors and so on.
And deciding not to postpone them could lead to having Juve winning an appeal and you can figure the rest out: Juve sueing Figc and asking damages, the club in A instead of Juve not wanting to return to B, the clubs that lost to Juve in B appealing, some clubs appealing cause their fate would have been different if Juve had been in A from the beginning... Plus you can't switch the Series of 2 clubs during the season...