Misplaced trust ?
I don't trust AI to do basic jobs at the moment, so why should we trust it with something as critically important as this ?
AI only learns from existing information and can't differentiate good information from bad information, it will have presumably ingested Agent Oranges views about injecting disinfectant as a COVID remedy for example. We also know it can't extrapolate accurately and is known for getting the basics wrong, with examples such as putting glue on pizzas to stick the toppings down, claiming some things are safe to eat when they are not, etc, then there is the risk of it misunderstanding the nuances of the prompt it was given, particularly for more complex challenges.
The risk can only be huge and we can only be deeply concerned that it will generate similar hallucinations on the things its being asked to solve. I for one, don't fancy being at the front of the queue (*) when someone wants to test something that only works in theory, since we know that everything in theory, works in practice.
(*) or worse, my kids, etc.
But, once again, the hype is that AI fixes everything.
Presumably, they will still need to do animal testing on any animal medications, and don't forget that we are animals too :-)
So, the claim of "replacing" animal testing is somewhat misleading.