It is quite honorable of Iainttellin-san not to embarass him in his own dojo. But if I was his uke, I probably wouldn't have been so nice. Because my responsibility as an uke is to let nage realize if nage is doing serious mistakes.
But of course I wouldn't do this when it is an enbu (demonstration). But, I would do it if he was my training partner. Because I want to send him the "message
" of training sincerely and honestly.