Each of your bundles specifies that it can’t have products that have been in previous bundles (either all or some). I can’t see any quick way to tell which products have been in which bundles.
Can you add a feature to the Reports: Product Performance lists, whereby when you click on each bundle (eg the “System Neutral Kit” bundle) it shows you which product was in that bundle?
There is now a “Included in bundles” section on the Edit product page - it shows up just before the social media image section. This shows which bundles the product has been added to, along with some info about the bundle (type, end date, etc.).
On the Reports page, in the Product performance table for bundle items, the products of yours that are included in the bundle are listed beneath the name of the bundle, linking to their edit page.
These together should make it a lot easier to see which bundles your products have been added to, as well as make your reporting more clear.