Another point in favour of NOT topping up the effect of fall damage: LAG.
I know, there should be less lag over time, and the PS3 is relatively lag-free, and PCs get dedicated servers, but there will ALWAYS be lag, at least occasionally... And guess what happens when you hit a short run of lag while you're falling? That's right - timing your slide becomes impossible... Way to ruin a person's game with instant-kill fall damage, guys! Oh wait, SD thought of that and DIDN'T make fall damage instant-kill. Maybe it was a clever move after all? You can lose a couple of pips of health, and need to find a Medic to patch you up, but you'll at least still be able to move - and on teh other hand, the enemy watching you screw up can turn around and say "Oh look, he screwed up, easy target," and run in for a quick kill.
I know, there should be less lag over time, and the PS3 is relatively lag-free, and PCs get dedicated servers, but there will ALWAYS be lag, at least occasionally... And guess what happens when you hit a short run of lag while you're falling? That's right - timing your slide becomes impossible... Way to ruin a person's game with instant-kill fall damage, guys! Oh wait, SD thought of that and DIDN'T make fall damage instant-kill. Maybe it was a clever move after all? You can lose a couple of pips of health, and need to find a Medic to patch you up, but you'll at least still be able to move - and on teh other hand, the enemy watching you screw up can turn around and say "Oh look, he screwed up, easy target," and run in for a quick kill.
Lag is a technical issue that should be resolved in the upcoming patches. Even so, technical issues should have no effect upon balance and gameplay issues. It would be like saying that the Engineer's weapon buff should be removed because of a graphics card issue. Yes, lag is annoying and yes, your gameplay will probably suffer in a game with excessive lag but that should have no effect upon how the game is balanced.