Crystal tower and parties challenge- why not?

[Onyxys]

Racing to kill the Batraals? That's cool, but that usually means you're ignoring your adds and thus killing off your two other parties and more than likely feeding the bomb too much and no matter how geared you are, constant add explosions ontop of the AoEs/direction attacks can and will kill off people pretty quickly if the healers end up dying

Can be created a system of penalties, if party doesnt kill their bombs. To achieve best result and to make balanced party for some such challenges players will create full party before using DF