I have a background selling projects with long sales cycles, and I think partly from that, I have no problem putting in lots of work for a company that I think is making a good faith effort to get to know me, for an appropriate job that will provide a high expected return on my efforts.

The problem with AI interviews (and much of the hiring automation in general) is that (a) it's not good faith, it scales so that all the candidates can be made to do work that nobody ever looks at. If I'm on a short list of two people for a Director level position, I'd happily spend 8 hours making a presentation to give. If I'm one of a thousand and haven't even had an indication that I've passed some basic screening, not so much. And (b), all this stuff usually applies to junior positions where the same payoff isn't there. I've worked for months with customers to get consulting contracts before, and obviously price accordingly so it nets out to be worth it. Doesn't work if you're putting in all the free work for a low probability chance at an entry level job.