Im not as confident as you on the PTAB as while I agree we are on solid legal ground, I sadly don't think the PTAB acts in a manner consistent with law.
Now the numerous recent rulings at the CAFC that have shed light on their shenanigans do have a potential impact, the one you / data mentioned and a number of others.
I do feel our odds are better than past statistics for this reason, along with the fact a number of continuation patents were accepted etc.
However, I still feel this is a gamble given the reality of PTAB behavior. I will believe a change has occurred when we hopefully see it here. I wouldn't have invested if I didn't think we were in the "right"