Convenience comes in the form of the USB dongle.
It automatically loads the payload, which saves the required use of having a device to send the payload from, and also saves you the required use of a USB-A to USB-C cable as well.
Is also more user friendly once it is already verified, simply drop and go for the ROMs.
And to be honest, anyone who gets into this to pirate stuff is already well known in where to get the games from, that part does not count into convenience sake.
Btw, I'm no SX user (yet), so I am speaking from what others have said.