Should initramfs be introduced into the main releases then it will adopted by -light as a matter of course.
I am not suggesting to publish versions that are different from the main release, but if I knew how to get an initramfs instead of an initrd when remastering I would test it, then if
the results show that it can
bring benefits and spare the resources in a Live (as initramfs is loaded in the RAM, but then once the Live session starts, it is unloaded, therefore freeing the RAM for other processes), then I would report all theses results at the forum. Then, I'll see if this idea makes it's way...
Obviously, all persons who have recent powerful machines can't be interested, but for the machines P1 if there are still any, P2, and Celeron, that might be interesting.