It's completely hypothetical, because (as we found out later) TREG was only available to people who buy AAPL gear.
An NDA seemed to me like a pretty arrogant thing to demand at the time, considering the product was already over a year late, and TREG got you a device you were already owed, in an incomplete state, along with an obligation to do uncompensated work for WT. Consider: even at the time, the product should have long ago been delivered to everyone who had ordered, without obligating them to do or refrain from doing anything at all further. Writing reviews, complaining publicly about bugs, etc.
But since the agreement was never actually published, I had no opportunity to examine it and decide if it was reasonable. It was disclosed only to people whose application to participate was accepted, and mine was not.
Later, the text of the agreement it was leaked because it was inadequately hidden in the iOS app. (Not by me, because I don't have an iOS device.) It was only then that the covenants of the "agreement" were disclosed, along with the fact that TREG devices have a built-in remote bricking capability: if WT doesn't like how you act, "your" device eventually becomes useless.