I would say including bracketing is pretty limiting, by restricting yourself to tripods and low-movement scenes, so not generally applicable. It's quite interesting seeing some of the bracketed scenes people shoot on the Thames at night. They think nothing moved so it's good but it isn't as the boats move up and down due to other boats that passed by a while back. That also screws with long exposures trying to make the water super-smooth of course.
Three questions:
1. What makes you think a tripod is necessary for bracketing? I do it hand-held all the time. This is not a problem as long as the longest shutter speed in the bracket can be hand-held without difficulty. The shots used for the stacked image below, for example, were hand-held.
2. What makes you think subject movement is a problem? You can tell the software to use a specific frame in the sequence to render a certain object or area. Alternatively, you can ask the software to make unwanted moving objects disappear.
3. Remember that the starting point you, not I, chose here is the one where shutter speed is not a restriction so that FF can get the same DoF as MFT without leaving base ISO by using four times as long an exposure time. Exactly what is it that we can't accomplish with bracketing and MFT in that scenario? As far as I can see, all the MFT user has to do to reach parity or better is to make sure the longest exposure time in the bracket is as long as that employed by the FF user.
Also your DR graphs would look quite different if you did DR for mid-gray (say) to get an idea of mid-tone image noise.
DR is by definition not about middle gray. It is a measure of SNR in the shadows, where the SNR is always weakest. This is therefore where most people find noise most troubling and therefore effectively sets the floor for acceptable image quality. Have a look at
this report from a poll where people were asked to judge the quality of two images with regard to noise, one of which one EV better for midtone SNR, the other one EV better for DR. The large majority found the image with one EV better DR preferable as far as noise is concerned.
