I can understand the devs’ desire to have players spend their time exploring the various world events and avoid repeated runs in one area.
However, many people warp back and run a quick event like the Maw because it is conducive to their play time. Whereas some players were able to run several maws (in hopes for a precursor), they now can only run one, and possibly another dragon if it is up.
With that, shortening respawn times for meta-events gives absolutely no real benefit to anyone anymore due to the one chest per day restriction. Allowing it to be run two or three more times a day will give more players the ability to complete these multiple events that you want them to explore.
Thank You.