Normally, I would agree, but Yoshida himself has said if they were to work on something new, they would have to sacrifice on something else. So at least for this game, it is absolutely necessary for each player to support what they support and to be against what they have no interest in doing unless they could be assured it would not impact their choice of activity negatively.
There would be nearly nothing involved in making a new "content" like this. The dungeons are already there in the game, it's just applying the Minimum IL restriction (already present in game, it even already has the effect of boosting drop rates in certain content) and a damage multiplier, and tying it to a "roulette".