Abyss spawning on boss area in 0.3.1 repeatedly

I don't know why this is supposed to happen, but this has happened multiple times to me. How are we supposed to fight the monkey when the entire area is covered by abyss mobs?? How are we supposed to fight any boss fights with abysses spawning right under us? What is this design philosophy? Do you guys even test these sorts of scenarios? This does not make sense.

GGG`s test philosophy is "we don´t test, we run nummbers" and this is the shit we get.
None of the devs test play this progaming desaster.