I'm sure many of us have tried much more weird ****, with way less preparation, and have not come to the notice of authorities .... perhaps by simply better luck.
Trying to be constructive, your wind was found not to be ideal from very early on. It then teased you on and off during the day, making your situation worse. I could be self righteous and say that you should have given up earlier, had I not had a personal experience where even perfect conditions led to failure .... circumnavigation of Rotnest, perfect seabreeze in at 10 am, tacked up wind to West End to have the wind die at 11.30. Never happens, but it did. Limp dicked it home, no harm done, but .....
I don't envy you all the gear you were carrying, but nobody could doubt your preparation. Well done.
In April I am sailing 3000 NM from Galapagos to Polynesia. Hoping to get the kites out a few times, but we will have a boat to keep us company.