If you cancel it, you have to start over. If you join another player in helping a third up, you start your own timer.
IT’S JUST WRONG!
The technician got it right; you could help your tech teammates and go for a joint target, at the risk of being wiped by aoe damage.
…
Your timers should add to each other. And the target of the ‘help up’ revive should have the revive progress ‘saved’, so it can be continued, by the same, or another (or multiple) guy/s (and/or girl/s.) Again, like in etqw. No excuses! Fix it already!
Alternatively, if you have a reason for the current state, I would love to hear it.