I suspect it was written by someone who thinks "CPU" means "desktop computer".

I agree with you, and with the chair and stuff that's also included, this thing probably costs tens of thousands of bucks and should include literally everything you need. So I suspect they're just using it as slang for a computer. Like old Nintendo games did! "VS CPU" mode etc.

The whole tower is probably almost a rounding error in the hardware cost of this setup!