Daily updates are too stressful and annoying. I am an experienced user and would not like daily updates. Or weekly. I just don't have that kind of time. Only a few people do.
Now that Mint main will be based on a LTS edition, and maintenance is now theoretically easier and less stressful to the staff, I am hoping Update Packs receive more attention. I would like to see monthly updates, but quarterly would be fine too.
I don't think a rigid schedule for Update Packs is necessary. A general policy of every one to three months with three months being the latest, would be great. I am waiting for the Mate 1.8 and Cinnamon 2.2 updates. I realize the Cinnamon updates first need some upstream updates before 2.2 can be merged into LMDE.
Yet other updates are necessary and should be pushed as quickly as possible. For example,
desktop sharing is now broken. Something like that just needs to be fixed as soon as practical.