IMO, The RS232 is a dinosaur that works. These ports went out of style over a decade ago but they are still in use and they work very well where high data speed is not an issue.
The usb port should be maximized. There are a lot of things that could be done with the usb port. I would expect everything that can be done through the RS232 and more could be done through the usb port.
And I agree. No fta receiver should not have a rs232 port unless it has a Proven usb port that functions as good or better than a RS232 port. EB