Let's see ...
You're proposing something like a combination of https://www.wikitree.com/wiki/Special:FindMatches
FindMatches searches for possible matches for profiles in your Watchlist. You can set it to include rejected matches.
BrowseMatches can show rejected matches, but not just the ones that were proposed or that FindMatches searches would report.
The problem with the FindMatches feature is that it's just for your own Watchlist. You're proposing something that could be used site-wide.
Assuming I'm understanding you correctly ... how could we do it? I think we'd have to add a FindMatches search feature to BrowseMatches. As you page through rejected matches, it would search to see if they are likely matches and filter the ones that are not likely.
It's feasible but not a simple addition.