Nobody likes dealing with a bitchass ghost ruining all your windows and spacing an entire hallway. It's fun for the revenant but not fun for anyone else.
I propose a change to this.
Force the revenant to remain stationary and corporeal for a few seconds while they charge up their burst, the same way they have to stay still to suck out someone's soul. This way, you actually have the ability to prevent the destruction from happening, and you don't just have some bitchass purple ghost blowing shit up and running away. Add some more risk to this mechanic and it would make it WAY more bearable.