Both are part of CCL. Are you saying that someone would buy both HAL and Seabourn as a “package”, thus splitting them off from CCL? Before Covid I could see HAL with the EXC experiences getting closer to the Seabourn adventure cruises but HAL has fallen back to the more sedate market. Having sailed both, I still like HAL best. In my experience stateroom service as well as dining service is better on HAL. Entertainment is better on Seabourn.