Keep in mind that GNOME Software already only checks for non-security updates weekly. So it will actually take as much as two weeks for the update to reach users once it enters batched, which I suspect may not have been intended. We are really looking at weekly updates with an additional one-week delay. Probably you were intending to implement weekly updates without that delay, which seems more desirable? If so, coordination with the Software developers will be needed.

Also, if I mark a security update as low priority, that means it really is low priority. There's no need for many security updates to skip batched. Many are e.g. minor DoS vulnerabilities that are unlikely to be exploited ever, let alone in the next two weeks. Of course remote code execution problems should probably skip batched, but those are unlikely to be marked as low priority. ;)