The way I take the reports.
Trade Matches. (two-way matches) Should show only matches that both parties have cards. There are times when this does not happen. Most of these appear when you look at the report before it is finished. There are ways to clean them up.
Recent Matches. (one way matches) two areas, "For sale/trade" and "Want list". These matches only stay there for 30 days. (I may be wrong but that is what I'm seeing). It shows the date and you have to click and look at the set then the members.
Match Item Reports (2). "Match items on your For Sale / Trade list with items on other members' Wantlists" and "Match items on your Wantlist" with items on other members' For Sale / Trade lists. These you choice the sport then the set then you go to the card and the mentions to see who has them.
None of these are really easy if you are looking for a bulk deals.
What the OP wants and what it appears the New Feature is asking for is. A report say (one-way deals). This report would look just like the Trade Matches but just the cards that are on other members want list and your for-sale list. Want list. Member A needs a 100 Member B needs 98 and so on. Said cards would be the same as the cards on the Match items on your For Sale / Trade list with items on other members' Wantlists but show each member with their number of cards vs the sets. That You have to go through.
There are other ways, but they all take a lot of time. Keep in mind anything like that would take a long time to get the report done.
If that is done maybe someone would like a report the lists members like that for their wants.