Again, I wanted Mayer over KC, too. I'm not sure how many times I have to say that.
IMO, both may have been ML ready, and one was chosen for various reasons- and maybe not about higher "readiness."
When someone says he was rushed and gives no other reasons, even when in a debate about it being a major reason or the most important one, maybe I wrongly assume they think it's the most important reason. "Major" may not mean over 50% of the reason, either, if there are 3 or more reasons being suggested.
My point is nobody know the major reasons. We are all hypothesizing, and IMO, more so if we keep giving one reason over and over and not suggesting more easons were or could be involved.