I think a few of you need a chill pill.
Flybys have always been part of aviation and a delivery flight is one of those occasions where it's nice to have a bit of fun and a flyby is nice to see.
I the current strict SOP driven industry we all fly in it's a joy to see an aircraft doing a nice flyby.
As for safety, get a grip, it was flown by an experienced pilot doing a very straight forward flyby......
Please chill out