Its just the case of the user being expected to know his codes are scripted, else ignored. It aids
in the frustration when you load Gcode from another device and edit for an hour to remove illegal
GCodes, the result of ignoring bad codes actually works out better for me in use I find. Yes, it can lead
to bad errors if one is unaware, but the save of editing bad files actually overrides that consideration
for me in this case.
All a matter of perspective.
Art