Yep, I have the same thoughts about ChrisG's decision at the end as well. But hindsight is 20/20.
After the air.S on Doom, he knew the missiles were incoming. Could Shadow Servant have done fast enough damage to Doom before Morrigan got hit and killed by the missiles? Most likely. But he had to make a decision within a split-second and mixed with the pressure, he made the wrong choice at the end by super-jumping to block the missiles.
I'm disappointed at the outcome, but there will be more majors and more EVOs.
Someone else here stated that the FChamp vs. ChrisG match was the highest level Marvel play seen to date and I have to agree. The next time they meet will be intense.