I'll reply first to the overall idea - automated relic release can be a useful tool, but perhaps not quite in such a rigid scale as you suggest. I can see an advantage to an admin being able to preset releases during time zones that would normally be unlikely for them, but I'm not sure fixed-period releases would add to the game. Different eras run at different speeds, and I think being able to adapt to that is important.
As for F1 and M1 (and, indirectly, M2), I have to find a balance and pace for releases to spread out reset times. It can be more of an art than a science at times, but the basic idea is to have a soon to reset or recently reset world at all times, as those are the most appealing for new players.
I broadly aim to release the first batch of relics (4-6) somewhere around tick 500, with any intermediate and final batches around 1000 (or a little earlier on faster progressing eras). I feel like my broadcasts have reflected that, and perhaps I should stray away from 'soon', as it means different things to different people, and 'tomorrow/tonight', as many players are in American and Asian time zones, so they may have a very different idea of tonight/tomorrow as me, based in the UK.
M1 will see its final releases tonight (I'm usually in favour of weekend releases where possible, as more players seem to be active the ) and F1 will see major relic drops over the coming week.
Edit: somebody mentioned protected relics. We are able to do that, but I've had mixed responses. Might try some for F1 though.