He's probably right for now but other probabilities/possibilities (oncological and non-oncological) for pona will come out later after clinical trials data are out and dissected by the science people both in and out of ARIAD. They have a lot on their plate right now. I thank you for being the most pro active person in this board or in any other boards that I'm in.
BTW, on the scale of 1 to 10, how would you rate his letter to you? If you don't mind.