FoxMoth, I'm pretty sure my buddy would've read the NOTAM and flown appropriately.
Not sure where it was suggested that he would be doing otherwise? The question was about flying through a NOTAMED display area without calling - you seem to have taken this as a restriction on flying in ANY class G airspace without calling. I have flown non radio in the past and quite happy to do so in the future should the situation require it, but will always use the r/t if available.