The cabin they were in was something new too. Instead of a single bedroom which they all expected, it actually had split into three different rooms converting to a main common room within the cabin.
Jing Yu happened to see that the other Pandarens' rooms were the same as every single one of them was shouting from their main cabin doors how crazy spacious it looked.
Only through some interaction between the Pandarens did they realise that the cabins were actually split up based on the number of party members one would have, excluding the common room. Only through further inspection, did they all discover that the room was actually meant to be used as their very own personal private room.