Strikeforce had some of the craziest comebacks and slugfests ever. Diaz vs Daley, Hendo vs Fedor, Manhoef vs Lawler, Mo vs Feijao etc. I rewatch these fights all the time.
For Cormier and Barnett, apparently Cormier's hand injury was that severe. The fight is gonna happen after which Zuffa closes the SF heavyweight devision I believe.