I don't know. My A1200 does just fine without memory protection. Runs stable and for months at time. AROS, what this is their stated goal, but in other ways AROS is beyond what 3.1 is.
Really, it would make more sence to bitch about the state of Amiga OS 4 and/or Morphos.
Things are what they are. Don't like it, Leave or work to make it better.