Good morning, we are using the Members Plugin (by Memberpress) version 3.1.3.
I'm very grateful that you are taking an interest in this topic. One of the, perhaps, unintended consequences of WPFTS is, obviously, that it makes it a lot easier to find documents that were previously difficult to find because they were hiding in full sight amongst, in our case, hundreds of other documents. As I've said before, often it is just inconvenient and might lead to a minor loss of new members, but in other cases it could have very adverse effects on their businesses. I think this is one of the topics that is worth discussion, even though the solution will sometimes lie with a different plugin.
By the way, we did try having the "attachment" page visible for a while, but it displayed an enormous image of the document thumbnail, with a much smaller copy that contained the link below it. The link was, therefore, effectively hidden by the large image. Hence, using it as we have discussed but not being able to see it (at least, not for more than a second or two) would be very good.. Nick