Thats really not what roguelikes are. They wouldnt be one of the most popular genres ever if the base was laziness. Its more like being able to focus fully on the mechaincs/gameplay instead of spending countless hours designing worlds that either end up feeling repetitive anyway or you need to spend another few chunks of countless hours to make it feel good.

Besides, Hades is by faaaaaar their most successful game, it would be objectively stupid not to keep going with that at least for a while.