early game does present a problem with these 2 mobs especially if its a new person to the game.
I agree the mobs offer an elevated challenge over drifters, and as an experienced player, its welcomed, having the knowledge to defend and attack.
I'd argue for a player stealth mode. something along the lines of no armor, or weapons in hand, and crouching or sneak posture maybe(?)
(also, maybe a further limit to the spawn rate on the surface only, not sure how that would look/work)