I can understand gating certain events to keep people from farming things like datalogs and such, but in a game where one of the biggest outcries is no new content, its a terrible idea to put out new content but limit it to an hour a day if the person is lucky to find the time. I really like the idea here and like in champions where the event runs all day but gives better or more rewards as its once a day time slot. I'm looking forward to trying this once it goes live, and possibly finding that hidden path.
always-available PvE event and the details around that sound great.
Another timed calender event does not - for every event added to the calender, the rotation time between other events must necessarily increase, which makes people's issues with timed events even worse.
Still, the general model of "Always available event + timed bonus period" works well