The device can connect to one WiFi network, and create and share that access on a different WiFi network to multiple devices. The hotel sees all your devices as this one device, the same as if you had plugged it in to the ethernet cable in your room. Your devices have no clue, they just connect to this device's WiFi as usual.
If you see a 'trashhauler' wifi advertised in your hotel, come say hi.
Just need to change this devices profile to either WiFi/WiFi or Cable/WiFi as needed.