Topdrop,
It's also safe to drive through an intersection, but not safe to park your car and leave it there!
I can assure you that Mr Smith does know what he is talking about with regards to Class D operations and the procedures he has outlined are the same as I have followed for the last sixteen years...and no, I don't need big brother to tell me to stay clear of wake turbulence.
Some of you Australian controllers seem to think you are "controlling" UAVs. These planes have pilots..or didn't you know that?!