I understand the concerns, particularly regarding warranty invalidation. It's also understandable that DJI cannot approve of anything they do not control. We can't expect them to be responsible for any issue caused by the unauthorized use of hardware or software they did not create.
I see your point about 3rd party apps such as Litchi, DH, Dronelink, Red Waypoint and others that are made for profit and, as such, offer support which the cracked Go 4 Mod does not. Maybe at some point an enthusiast will compile a video that shows the expanded features of Mod 2.0. I'm amazed at the number videos showing how to circumvent things like NFZs, altitude, etc., things that can be dangerous and illegal. Above all, I want an app that allows me to operate safely within the law and gives me features heretofore unavailable to the Spark. Until then, I'll keep reading posts from those who have hands-on experience with all these apps. Thanks for your input!