I still find it sometimes unfair, what i mean is... I'll make a real example:
My party pushes the crystal to 49/50% (so almost till enemy base). There we keep killing enemies, really, we are teoretically dominating but unable to push the crystal more than that (i mean, we do not die, but enemies keep coming and stalling)..
We stay there till time finishes.. then we all die (!edit: cause we exausted all our resources and cause near their base enemies have position advantage, cause they are close to spawn).
The game goes in overtime while we are all dead and by the time we respawn enemies comes all the way till 50% and win.
This happened to me more than once, maybe 6-7 times out of 200 matches...

Disclaimer: i know we could and probably should have done better, in fact this not happens often but still.. isn't it stupid when it happens?
It almost makes me want to do it ON POURPOSE cause it seems a very silly but nice strategy to pull out..