Again, this is not how the Force works
oh piss off, the force has never been anything more than a plot device that does whatever is needed.
Alright, let me try it from a different angle - if the Force allows users to utilize Dark Side powers whenever they are needed with no consequence, then the Dark Side as a storytelling device is useless.
The whole point of the Dark Side is that it's insidious, it creeps inside you and takes you over without you realising.
It even threatened Luke, who is basically Space Jesus in the films. He has to actually throw away his Lightsaber and effectively commit suicide in order to avoid succumbing to it. It's only Vader turning at the last moment that saves him, otherwise he'd (literally) be toast.
This works as a plot element because we recognize the great sacrifice involved with throwing away one's weapon and exposing one's self to utter annihilation, all to avoid succumbing to an evil 'Force'. And we can recognize the poetry of one who has previously succumbed to it, being the force that eventually saves Luke.
Say what you like about Star Wars, it is a flawed franchise, but this is one of the greatest moments in movie history.
By comparison, Cere's use of the Dark Side is a cheap trick that throws away every established rule of how the Dark Side works. It's employed purely to aggrandize this character, make her appear more impressive, but it has the opposite effect.
