There is a difference between AI with something like a Cobra, that is attached to the HP hose, and AI with a transmitter.
I use a plain SPG, because it's analog and I think it is less likely to fail in a major way that something that depends on a waterproof battery compartment. But my husband uses a Cobra, because we bought them when we started diving, and he really hasn't concluded that there is a good reason to change. He has pointed out, with reason, that the gently curved sides of the Cobra are less likely to trap line than the abrupt change in contour of an SPG, and in fact, I have pulled line off my gauge many times, and I don't think he has ever had to do it. Neither of us has ever had a sudden and complete failure of either strategy.
He does use a Vytec with a transmitter, and that I think you can make good arguments against. The damned thing sometimes won't synch from the get-go, and it's intolerant of anything that causes pressure to go to zero -- so if you do a valve drill with it, you're out of luck for the rest of the dive. So, if you had to close valves to solve a problem, you'd likely lose the air integration function. Of course, he doesn't dive without a backup, but the backup is the Cobra . . .
I've somehow managed to live without my pressure being read out on my wrist for over seven years now.