Here's one scenario why 10.0 1/4 mile cars now love 1/8 mile.

Car won't hook, since we all know it's impossible for a car to hook at 10.0 with a 3 speed auto and 4.56 gears (? ? ?).
Switch to 'Glide - lazy, won't 60'.
Switch to 4.88's - lazy, won't 60'.
Switch to 5.13's - lazy, won't 60'.
Switch to 5.38's - finally 60's, now out of motor at 800'.
Switch to 1/8 mile tracks.