Because it's a dumb thing to be doing.
You probably don't realise that many aircraft don't have ADSB-out and your app won't be warning you about them.
And the planes that don't have ADSB are mostly smaller planes which are the ones most likely...
If you fear a DJI ban, shutdown of DJI software and firmware updates, blocking of DJI drones operating in the US, or any of the other sky-is-falling rumors of pending disaster, watch and assimilate this video.
Thank you to Vic Moss for an...