The sad truth is that airlines principally care about what makes them cheapest on the OTAs (corporate and public), and whether baggage is included or not rarely figures. They can then charge you extra for the baggage, so it's a double win for them.

My personal concern is that this will affect SAS's famous punctuality (I remember when they boasted of that, too - that page was last updated several years ago). If everyone goes HBO, it's going to cause some delays, which will either make some tight connections impossible or mean that the schedule will have to be padded.