The best reason I can see to keep a seperate /l/ is that the dominance of loli on /h/ would get in the way of other stuff.
>I don't want to give the impression they are part of a separate "2D Section" of Heyuri. They are all parts of the same "whole" thing
This is dumb! Grouping topics by the inherent similarity doesn't get in the way of forming a whole with different things: it's just makes them more balanced. A natural whole is formed of multiple sub-wholes.