None of the commercial Unixes survived Linux and the BSDs outside of increasingly specialized niches (well, I guess Darwin did). Oracle was the specific mechanism by which Solaris shuffled off this mortal coil, yes, but the last decade of it's life was not a foregone conclusion when Sun folded. The others are just as dead, but in their own ways.

Nobody is asking for a round of applause for Oracle, but the scorn poured on them for this seems misplaced.