Just looking at your pics, surely every AG brewer would want to use the BIAB method to stop the crapy clean up left in the boiler???
BIAB does away with a mashtun so its the mashtun that you don't have to clean out if doing BIAB rather than seperate vessel. You do though have a grain bag to empty out and clean a bit ready for your next brew, and if you do a dunk sparge in a seperate FV/bucket alongside the BIAB then that needs a rinse out too.
You will have the same hop debris in the boiler to get rid of and clean up whether you go BIAB all grain or seperate vessel with mashtun all grain.
Probably less cleaning overall with BIAB, and a bit less gear to store.