As someone with dyspraxia (a condition where it's sometimes difficult to concentrate on multiple tasks, among other things), I was initially worried about Marauders showing up often While the initial encounter was definitely a pain, I actually found them easier to deal with later in the game. You get a lot more space to move around, so it's easier to both escape them and take care of other enemies.
In my opinion, the worst encounter is the first; just an unfortunate side-effect of having it in a confined space to teach you how the enemy works.
Yeah that was super frustrating for me! I'm dealing with the rest of them as they appear but I'm definitely glad I can keep it on Hurt Me Plenty without guilt for now - can't imagine making them actually any harder.