If all that is true, then one shouldn't fly drones in wedge-tail territory. Just as one shouldn't store food in their tent in grizzly territory. Specific knowledge is great, but over arching principles still apply. Why go to National parks and disturb wildlife?
Some people would read original post, and wonder if THEIR drone if strong enough and fast enough to evade such birds, or survive their predictable attacks. I have the opposite reaction, your reaction is somewhere in the middle, bird strikes happen.
Information on the rules and conditions for flying a drone in a Queensland national park or state forest.
parks.des.qld.gov.au
A quick Google "Australian laws about drones and wildlife" yielded above link.
Includes little tidbits like "Avoid directly approaching or flying your drone near wildlife". I believe you, wedge tails have a large sphere of concern. They should therefore be given a wider berth than other birds. Just as a grizzly deserves a wider berth than a tree squirrel, both for personal safety, and because they command a broader area.
Laws generally mimic common sense, but some people ignore both.
I mentioned a red tail as an example of a bird I wouldn't harass with my drone. I understand it is a less aggressive bird. I suggest that more aggressive wildlife deserve radical avoidance. A 30 second look at the law seems to support me. I suspect you won't agree.