[rainforest]

I think it depends, some employers might appreciate being showed evidence that the process they've decided on isn't suitable for reasons they were unable to see.

[hashkb]

I've been on a few hiring panels and designed a few interviews in my day. I've never met anyone who likes being told their interview is broken. Especially not from a candidate (who failed / is refusing to do it.)

[angelsl]

Sounds like arrogance... on the part of the interviewer.

[sdoering]

I would hire them. They show me, that they think beyond their current task and are able to see the bigger picture.

Or at least I would consider hiring them if the rest does fit (culture and other such squishy interpersonal things).