Well perhaps I open them wrong then. I flick my (not assisted) boxcutter open with my wrist but open my assisted opening folding knife exclusively with my thum

Well perhaps I open them wrong then. I flick my (not assisted) boxcutter open with my wrist but open my assisted opening folding knife exclusively with my thumb on the thumb-bar. As I see it, not having to use your wrist is basically the point of the spring assist.