One thing I still find irksome though..... you drive ANY light mech, and drop a frikking single Meter, or have a team mate brush you , and BAM! You are at least in the yellow. (And my lights have max armor)
Conversely... an Assault mech, like my Atlas drops 20 meters off a canyon edge... and takes ZERO leg damage?

OK< don't want to go TOO into real world physics, but the laws regarding momentum, inertia, etc all say the Atlas would take MORE damage... much more mass accelerating to the ground, as it were.
More to the point, though, is that the Atlas has leg armor to spare, the lights? Not so much.