It have quite close range and you cant use it if someone is in the way ...
Your casters should be safe as long as they keep their distance or keep someone in their enemies line of sight.
Tactic should be harder that just put armoted guy in front and unleash Havoc.
The point is we just finally got rid of free Disengage, and now it's back again.
5e has rules for being Threatened for a reason and Larian are doing their hardest to pull the rug from under those rules.
Those kind of abilities can and should exist, but you can't put them in mundane
weapons. Fighters can take 2 levels of Rogue to get Cunning Action for Bonus Disengage. Only now they don't need to because they can just equip a sword. Rogue's unique skills, in this case Disengage+Attack on the same turn, are being put into a weapon for anyone to use. And tanks can't do their job again because everyone needs to be ultra mobile. It's dumb.
