Isn't five a bit much?

Yesterday I was playing Chasm Terminus, random quickplay.

We got a lights out mission, so far so good.

On the way to the boss our way was blocked by no less then 5 Daemonhosts!
In a Lights out Mission!

Multiple at least 2 times it was pure luck that we didn’t trigger it with hordes coming and two times it was almost impossible to get past it with one time the only way for it sticking close to the wall and praying that its aggro radius is small enough.

Through the emperors blessing we somehow got through without pulling a daemonhost but wtf