I am new to drones so offline mode was new to me.
That was not the main reason I posted it, if we are to believe your government it's all about security it obviously isn't and never was.
And I recall in Britain in 2005 when it was uncovered that Rupert Murdoch and The Sun journalists had hacked the ‘phones of the Royal Family. You don’t think the Gov had the same and better capabilities for spying on whoever they wanted, in...
What resolution are the images coming at? The pictures that you posted are low resolution PNG files.
12MP should be 4000x3000, and you shouldn't have a moire pattern at the distance that you are shooting from.
Lightroom and Photoshop have de-Moiré algorithms, you can even just brush on the algorithm using the mask tool and set the strength, they work very well, this is a common problem with lower res sensors.
EDIT - I tried this on yr image and it...