@Gingergrrl in the #MEAction article there is a link to a letter from Ron Davis regarding information and reasons they gave and his responses. I'm not sure if you missed it that. Seems to me that it was all about the fact that they wanted this to cost 500,000 only.
But the Lipkin grant was for $766,000 so the reason they gave wasn't consistent with what they were doing even for other ME projects, let alone other medical projects.