It's because HR is associated with mundane bureaucracy tasks, whereas talent is supposed to comprise strategic that matter a lot. I tend to agree with it. They're two clearly different functions. Hiring, development, retention, vs. the boring stuff.
Shortly after starting a job I saw a spreadsheet my boss had made with a section labeled "Upcoming Resources" with my name and start date underneath. The phrasing caught my eye and it felt a bit weird to be written down like a bushel of wheat, but I certainly wasn't offended by it.
FWIW, that boss turned out to be one of the best and most empathetic people I've ever worked with.
You need to take a remedial course on treating Entities of Other Existence with respect.
We'll have to get back to you on when you can register, we're a little under-entitied in the Carbon-Based Respirating Encouragement and Retention Department.