The change to the first post makes this sensible. For me, the bare minimum of finishing a story is to have someone else read it and make sure the multiple passes of self-editing haven't missed anything. That's what my primary editor does for me. He catches one or two little things every time.
I'm assuming that's what "Light editing" means.
I don't know where my more intensive process I used for my Magic of the Wood series and a couple of other stories here and there would fall. Sandwiched in the middle between my self-editing and my main editor, all of those had an impression reader. Her only job was to point out "huh?" moments in the story, ignoring grammar.
The type of commentary coming back would be things of this nature:
"This is a personal observation here. They were touching a squirrel. Now they’re touching food they’re going to eat? And not washing their hands first? That’s gross even if it is fiction."
(Why or how is it obvious? You haven’t given the reader anything to know that yet. That comes next but it isn’t obvious here.)
(Saying the walk ended in the bedroom gives it a different implication than what you’re meaning here.)
I have done extensive editing such as adding new scenes, dropping scenes, dropping peripheral characters and such based on those type of questions, but most of them simply involved a bit of rewording or pulling a bottle of hand sanitizer from someone's purse.
Not sure where that would fall, although it would be pretty much irrelevant to the competitions here, because the shortest story I've ever added that extra step to was 13k words or so.