Agree to disagree on that, but won't elaborate as it's irrelevant. AI is a given (i.e., yielding whatever benefits made you buy it in the first place), and the question is whether to add an SPG or not. I do hope you'd agree that the likelihood of a dive ending leak is higher after adding those additional failure points.
As with a lot of technology we reach a point of “peak trust” in the technology rather than in the analog tools which have gone before.
The failure points in the electronics in your transmitter, dive computer and the signal between them are far more numerous than the relatively simple pressure transmission, hose, 3 o-rings and bourdon tube that is your typical SPG system.
BTW, I also use 2 dive computers … in case one falls I have a backup so that I can continue diving on trips. And since I have experienced depth sensor failure on one of my dive computers, and a recall of my AI transmitter, I have a healthy scepticism about the reliability of AI dive computers.