Yes having these lugs sticking out is stupid, racers realised this with the original Yokomo BD 7 years ago, but the manufacturers are slow to catch on.
Have a look at the Kyosho TF6, they've got it right. Serpent have done something similar for the S411, as have Reflex Dynamics with their TC6 chassis conversion. Its not hard, just takes a touch more effort.
RC-Timing Software - http://www.rc-timing.com
Mercedes AMG F1 - http://www.mercedes-amg-f1.com/