As a tangent, anyone adopting Macabrea's massive damage rules can see a very VERY high casualty rate at high level. Maximised Cone of Cold anyone? 90 points of damage is going to hurt, but just wait for the DC55 Fort save as a kicker. Who needs Finger of Death?
The critique here is not a critique of the falling rules, but of the Hp system. JLXC has alluded to my point, but I'll make it explicit. It is no more unrealistic that a 200hp barbarian merrily throw himself off a skyscraper a few times than he stand there happily with forty arrows stuck in him. If the falling rules really bother you for purposes of 'reality check' perhaps you should adopt the much vaunted WP/VP system, or even change to a direct system altogether, like GURPS (and there's nothing wrong with GURPS).
The critique here is not a critique of the falling rules, but of the Hp system. JLXC has alluded to my point, but I'll make it explicit. It is no more unrealistic that a 200hp barbarian merrily throw himself off a skyscraper a few times than he stand there happily with forty arrows stuck in him. If the falling rules really bother you for purposes of 'reality check' perhaps you should adopt the much vaunted WP/VP system, or even change to a direct system altogether, like GURPS (and there's nothing wrong with GURPS).