Please note that these were metastatic patients after unsuccessful earlier treatments, not a random group of freshly diagnosed patients whose tumors would be less aggressive on average.

I don't see any reason to be dismissive of this result. It is, indeed, striking to have half of terminal patients respond to a new treatment and two completely healed.

It is also striking that this treatment works on multiple cancer types.

Overall - striking, yes. N == 1, but I am awestruck. Let us hope that the larger trials won't disappoint us.