Whether the room has a door on the bathroom or not, business travellers should be getting separate rooms... Over dozens of trips, the only time I've ever shared was a two-bedroom apartment when I went with a colleague for a conference (one had an ensuite so we had separate bathrooms as well as separate bedrooms with doors).

I wouldn't be OK with going on trips (or sending people I manage on trips) where two people had to sleep in the same room, I wouldn't consider that acceptable...