I have two things to say:

1) "Reopen PDFs from last session" doesn't work for me. The setting is ticked in the relevant menu but on launching the Acrobat, it is greyed out.

2) Inb the "Recent" panel there are checkboxes for recently opened PDFs. I think there should be an option there to select using the checkboxes the PDFs the user wishes to open and opening them.