Just one point:
There's a fair few people who propose exhaustion as the 'you got dropped' penalty. Personally I think exhaustion is just an awful rule for a bunch of reasons, but in this case it's because it discourages any action that is not combat as it's first level. So in the given examples - not only does the rogue not have a real say in whether he gets healed, now he doesn't get to be the group skill monkey when his group healer chooses to ignore his plight.
So - I'd either change that first level of exhaustion or create some other 'non hit point debuff that is hard to remove with magic' to stand in for it if that is your goal.