And by the way, there is an error in the Table.
Not any more. Moral of the story is don't do stuff like that while watching the Browns game.
Were you going for wanting it to say flatted 7 or that I originally had a Dmaj7 spelled out with the C# instead of the C♮?
As far as what his intention was, once again, take some basic music theory lessons. This kind of thing would be covered within the first 3 or 4 classes. This scale is Mixolydian mode.
There are no shortcuts to learning. You of all people on this forum should know that. You didn't get your advanced degree by looking for shortcuts or doing things the easy way, did you?