Two quick things:
Your NIH grant Progress Report goes to Program. Your PO. It does not go to any SRO or study section members, not even for your competing renewal application. It is for the consumption of the IC that funded your grant. It forms the non-competing application for your next interval of support that has already passed competitive review muster.
Second. The eRA commons automailbot sends out requests for your JIT (Just In Time; Other Support page, IRB/IACUC approvals) information within weeks of your grant receiving a score. The precise cutoff for this autobot request is unclear to me and it may vary by IC or by mechanism for all I know. The point is, that it is incredibly generous. Meaning that when you look at your score and think "that is a no-way-it-will-ever-fund score" and still get the JIT autobot request, this doesn't mean you are wrong. It means the autobot was set to email you at a very generous threshold.
JIT information is also requested by the Grants Management Specialist when he/she is working on preparing your award, post-Council. DEFINITELY respond to this request.
The only advantage I see to the autobot request is that if you need to finalize anything with your IRB or IACUC this gives you time. By the time the GMS requests it, you are probably going to be delaying your award if you do not have IRB/IACUC approval in hand. If you submit your Other Support page with the autobot request, you are just going to have to update it anyway after Council.