I am not sure, but if I remember correctly employer must prove they are not discriminating. And just because they are using AI they are not immune to litigation.
At most I imagine the plaintiff is allowed to do discovery, and then has to prove positive discrimination based on that.
"Clarifies that, when designing or choosing technological tools, employers must consider how their tools could impact different disabilities;
Explains employers’ obligations under the ADA when using algorithmic decision-making tools, including when an employer must provide a reasonable accommodation;"
That seems backwards, at least in the US.