I start a node with the mod, kill everything except one character. Quit out, disabled to mod (close it) and go in with a team that can kill the last toon.
Will cost you 20 energy per node, but at least you have something.
Seems not to be time related. I did a greek raid and let the time run almost out still got the error message.
A node which I normally would finish in 30-60 seconds even without mods.
Of course it will. Just be smart using it.
No one shots and have a feasible time for your timed run.
Since you can't mod yourself into DD5 it doesn't matter. You still have to gear the toons to enter.