It does make sense, as also does perhaps the reason why they haven't talked all that much out of work is for a lack of knowing where to start with a non-work related discussion? I'm sure he respects that good work that Tear puts into her job at Esdham workaholics? much?.

I'm not sure how public that was either but (iirc) Lucrecia kept it all in a journal which I'm sure that Sephiroth has at least been through once or twice so there must be some idea about it - I also need to go back and read that again for a refresh before we start thinking in that direction too.

The fact that they were able to get in during an -obviously intended- blackout at the Tower, to save Downapolis has kind of underlined the importance of 'doing something' about the cult, at least to Sephiroth anyway. A security risk like shouldn't just be ignored...