Mirage portal monsters shotguns

Going in mirage portal is gamble some time, especially if defences on build is low. Sometimes there are a LOT of monsters right around and they all agro and attacks you all at once. Trying to dash/tp helps sometimes, but for builds with prep for damage it could feels bad.

It would be great if monsters spawn farther away, or if player gets aoe stun on enter/first action/grace period ended like in scourge league.