The vast majority of edits are done by "high-level-category" editors, who could choose to work in any number of categories. Each category has its own unordered heap of submittals.
And of course submittals are the least important of all the ways that volunteers may find good sites. They are not "priorities" in any sense of the word, over other ways of finding sites. They are 'last resort, do not totally overlook these'.
So the only realistic attitude to have is: there are probably another several million good sites on the internet; we'll have to look through 20 or 30 million sites to find them ... and your site is somewhere in there. Who knows where? Who can know where? Each editor chooses where to work. There are many places each one can work. There are many ways each one can work at each place.
It's not a robot assembly line. It's people, real people.