Well OK, but if your bags come 2 hours later then CX will deliver them to your hotel in BKK (MCT CX-CX at HKG is 45 mins so if your bags don't make it they will deliver at their expense). No big deal as far as I am concerned. Agreed it is slightly different if you are connecting to the last flight of the day to BKK so ypu would have to overnight without luggage.