I believe entanglements due to AI in caves are none (because as said above, people don't use them), they are likely very low in wreck.
These are my impressions, I'm still wannabe for these (but will certainly not use AI then).
Now, I know 'entanglement' due to AI in rec. diving in boats are high probability. I thought ones were joking about the risk of people carrying tanks by the Transmitter... until I saw it. I think the TRX got broken, and that was a 400$ piece of gear :-(
I can also imagine that if not completely broken, it could have been damaged a little bit, then got worse during the dive and free flow, or leak bad. HP free flow may not be terrible, but still is bad and would force to end the dive anyway.
So eventually, AI computer are more likely to create issue in rec. diving, whether the TRX points up or down, due at least to the above example, which is said being 'common risk'.
Did anyone said DIR may be good for rec. diving as well ;-)
I also realized that fitting a reg+TRX into a reg bag is a pain, especially yoke version, and if the TRX points down...