There shouldn't be a skip revive option while down.

Disclaimer: I'm the type of person that actually does wait for medics, most of the time.

Yet I think this is a spectacularly bad idea for a few different reasons:

1. I skip a revive if I am under the impression that there's no possible way that a medic could safely revive me. If there's 10 enemies around me, I don't want to lure a medic into getting ambushed.
2. Respawning may cost a single ticket, but it does allow you to quickly reposition yourself to the most effective location on the map. If I have to wait for a medic to revive me in a location where I can't be all that effective, I am wasting a lot of time that could be spent on capturing objectives.
3. You'd just be waiting for an eternity of no medic comes.
4. Running halfway across the map is a waste of time, even for a revive.

Instead, I'd suggest a different solution. If a medic who is within 25 meters and has specifically marked you for a revive, the option to skip a revive temporarily is disabled. That way, you're not just waiting for a random medic, but you're waiting for somebody that has consciously chosen to come for you.