If you lose the unit in the first place, it was not a "good play" unless you traded it for more expensive one. And if you did traded, you're still in better situation then before + unless it was a suicide charge, you should have anything around to finish it off yourself, if not, again, you're not describing "good play".
Yes, thanks for pointing out the obvious.
Even if you're in a better position than before after your good play, you are still being arbitrarily punished based on a 5% chance if your vehicle got abandoned in the enemy base. That's nothing but bad luck, which is what the other guy was claiming doesn't exist in this game.