Intuit has a pretty broad financial software portfolio, not just a tax company.

Also, yes the actual arithmetic at the end should be handled by deterministic code. I doubt anyone, including Intuit, thinks otherwise. But there's a ton of uses for LLMs before you get to 2+2 = 4, explaining concepts, document extraction, understanding the full financial picture, etc.

Kind of feels like you're criticizing a cartoonish idea of AI's place in their products.

You would think arithmetic should be deterministic, but just days ago I received paper mail from IRS saying my tax software computed federal tax underpayment penalty incorrectly, and they are refunding me > $300.