They shouldn't limit us at all to how many times we can enter.
This's as much as we want type of thing. It would be nice to do it as much as we would like. There shouldn't be a limit on sortie. It should be entered, anytime with an alliance as much as we want. Putting a limit on us is holding us back. The ability to receive more rewards would be to just enter again. If we choose to farm it out. That's fine. If we want to continue until we have obtained enough rewards. That's cool. If we choose to help others while helping ourselves. That's better. If we come out with a fully functionable character. That's superb.
We have to gain points to succeed. There should never be a limit to however many points we can gain per day. Rupix plates should only grant us the ability to enter sortie. Once we have obtained it, it should not have to recharge to enter a battlefield. If we aren't successful enough to defeat any of the bosses and only choose to go after chest for rewards. Then that should be all that is.
Hardcore end game players should not be a thing. When you bring up that thought it's probably the most ignorant thing i've ever heard. Just go in and get the chest if we aren't good enough to beat it ourselves. The good get better. The bad get good.