Before the release of deeds, the adventure board was a fun little login bonus. Its rewards were pretty meaningless for endgame players; a few gems or keys are nice, but hardly game changing, and the VIP key task basically doesn’t exist.
Post-4.5, the most important endgame feature is locked behind adventure board RNG. When a player first logs in for the day, they check the board and see either deeds or, most commonly, nothing of value. It seems like a questionable design decision to frustrate players immediately on login most days. I understand how probability works, and that there will be hot streaks and dry spells, but people are much better at remembering the disappointments than the lucky days.
One possible solution would be to break up the big deed tasks and provide deeds at lower rarities. This could be designed to give fewer deeds more often, for the same average amount over time. It would “feel better” to players, and would further incentivize logging in daily. Or you could add one random colored deed per day to the top task.
I guess my biggest issue with deeds is that they aren’t really even a feature. There’s no way to obtain them deliberately, and no gameplay associated to them. You just get them for free, and spend them every few weeks(?) when you accumulate enough to max a kingdom. As implemented, deeds are just a way to make stats slowly go up in a way that the player has no real control over.