Original author here (not ChatGPT):

My claim is that H&R Block would replace all their workers for more efficient AI if it was more profitable. Then they would re-invest that money in the most productive way they can – other companies, etc. This is the same strategy as Apple, Microsoft and other companies do with large amounts of cash.

I don't claim H&R Block would be directly creating new jobs. They would try to maximize profit by investing their profits and diversifying.