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I feel the need to state that because it was stated in such a way that it sounded like a universal truth, but it is not.
And yes, I own both FF and MFT, and there are certainly a lot of my results which I could not have gotten with the MFT camera, as good as it is, and I am not talking about DR or IQ in general.
Of course there are pictures that "can't" be taken in the same exact way with MFT as with FF or medium format or full format etc, there will always be differences. Stating the obvious because you feel the need is just silly. Like I said, I only question your need to remark upon something like that, not the actual fact that it may be so.
There will always be pictures you can't take with FF as well, try mounting a FF camera on the head of a skier and strap it onto a snowboard the way you do with a Go-pro and I can guarantee you you will be in for a hard time. Use different equipment for whatever it does best. Learn it, live with it and enjoy it.