Even my friend who is a huge fan of OSE got confused and accidentally backed the recent Kickstarter, thinking it was something new, when it's essentially a new box to hold your books.
I've already bought too much of the stuff, and the line is getting bloated (for me) after just a few years. It's confusing to new players, redundant to veterans, a headache for store owners to stock.
I think it would be preferable if Necrotic Gnome would create a compiled version, clearly label it "standard" and use that going forward.