RehabMan's argument for having kexts in /L/E back then was error checking if I recall correctly and whenever helping other people he expected them to have everything but essential kexts in /L/E. Over the years and for myself this statement became "depends", as there are clearly configurations which work better with having (some) kexts in /Other with InjectKexts=Yes.
Latest example is a Lenovo Yoga 920 where everything works perfectly having I2C kexts in /Other and wake repeatedly does not work having them in /L/E. Now, if RHM were here he would probably say something like "I cannot help you without full error reporting files" or "then you're probably doing something wrong elsewhere" but I miss him anyways...