A camera with flange distance of only 19mm, no mirror box and wide mount that permits light to hit the sensor totally unobstructed even at the furthest corners, is the ideal alternative of using it instead of an MFDB on a view camera... If the camera also has wider pixels, it's only a bonus for light perception and if it has great live view, it makes it ideal for the job... How can one call a camera with the above properties as inappropriate for still life photography (without providing any reasons), ...that, I fail to see!
Furthermore, if one uses the Leica S lenses on the front standard of a view camera and the SL on the rear, it will allow the SL to communicate with the SL lenses with full communication interface (it's only a cable needed since the interface is the same as the S lenses adapter)... I guess that a pro that uses Leica S and wants to add a view camera on his system for still life (with the lenses he already uses) and also needs a back up camera with additional LL capabilities and great video performance (with or without the view camera used as a video camera)... He can't find a better alternative than the SL (at least for now...).