John, the actual (only) explanation given was that he has an injured ankle and is toughing it out, presumably to make a living.
What are the other logical explanations you want me to be open to because there hasn't been another one given and you certainly haven't provided one.
What I did is take this explanation, watched his races this year where he visibly does not look to be in duress at all and said in my opinion that doesn't seem plausible. I might be wrong but it's my opinion.
I didn't start/come up with the 30mpw, 7min/mile thing - get your facts right.
As for why it's not unreasonable to entertain the possibility of something else?
1) He's the reigning Olympic and World Champion in the span of the last 23 months who is on a unprecedented run of poor form. It's not just the finishing times it's visually what we are seeing because he looks like a totally different runner.
2) His training partner refused to be tested and was banned 2 years. Why did he refuse testing - well most athletes who aren't doping don't refuse tests and get banned 2 years. The association there is troubling.
3) We can't move away from what we know about the state of doping in Kenyan athletics. Is it equally as bad in other countries? Yes. But Korir is from Kenya so the connection is relevant.
So let's get back to the other logical explanations other than an ankle injury - what are they?