He is just silly. Has he explained why you are supposedly unsafe?
Apparently too easy to bust controlled airspace here in Europe and mix with the heavy metal without a precise GPS position and line to follow. (He's from over the pond)...
I agree that I would not go on a bimble for more than an hour on DI alone. I do use VOR/DME; NDBs etc, but I plan and hand fly the lot, not leave it all to electronics, software and autopilot. I have used, in the past the Skydemon Demo, to plan a route and found it quite good. If it did weight and balance I would buy a copy, as there still is enough manual stuff to keep it interesting. I would however like to keep the old hand calcs fresh, because I get some enjoyment out of the whole flight planning process and then flying it, but it is just my opinion.
Well, he is 100% right to take birds out only in perfect wx
Can't fully agree here, my vote would be for a small amount of turbulence... or I guess you could add a new meaning to Pilot Induced Oscillations