The Tamworth and WA 'flypasts' were approved, from memory, and there were no repercussions internally.
At Schofields around that time, a foreign operators B747 did such a spectacular act that RPT a/c carrying pax were banned thereafter from displays. Certainly, to even think of the "D" word, you need the CP express approval in QF and it hasn't been given since [below 1,500ft at least.]
There is perhaps more to the OSH flypast debate which I'll fathom out before I die. Suffice to say I was F/O for the protagonist on his last line trip before returning to the halls of power from the 'sin bin' and he wasn't saying anything then or since.
Finally, it has reached the ludicrous stage that if you PLAN [note that word carefully] to fly past any public gathering you need an airshow approval. OTOH, if you happen to be flying past and observe a gathering below [not low flying or doing anything outside the CAR's in either case], that's quite legal. Thus, when we flew a warbird at about 2,000'AGL past a horse gymkhana in the Hunter recently on transit to Scone, we were legal, but if we'd TOLD them we were coming past; watchout!! Amazing stuff.
G'day <img src="rolleyes.gif" border="0">