Your own link disagrees with your conclusion!
Apart from that it seems to be mostly comparing chunky tower air coolers to 240mm AIOs, as opposed to low-profile air v 120mm AIOs.
The only "true" mITX cooler that I can see on your link is the L9x65 which is the worst performing of everything on the second set of graphs (86C!).
If OP would use low profile ram, he could maybe fit NH-L12S or Cyrorig C1 which are pretty much the best performing low profile CPU coolers, at least as tested in the NCase and Dan community. However, Cryorig C1 still scores unimpressive 76C on the second set of charts, and if you click through to the actual testing methodology those numbers were recorded in an InWin D-Frame which is wide open, almost a test bench type setup. It's very different situation to a small closed SFF case where air coolers often suffer to recirculate their own heat, and the heat of the GPU. An AIO mounted on the bottom of the Shift would be guaranteed fresh air.
So equivalent 120mm AIO is better performing. The ML120R is a new, so not on the charts you linked by eg the Corsair H75 comes in at 72C and the H80i under 70C. In another source https://hexus.net/tech/reviews/cooli...0r-rgb/?page=2
performed even better than Dark Rock Pro 4, a tower air cooler.
Regardless of such evidence, from my own 7 year experience of SFF building, all "wind tunnel cases" i.e. with a single fan intake such as SG05 / SG13 / FT03-mini / Evolv Shift show dramatic temperature and noise decreases on both CPU and GPU when you use a 120mm AIO at the intake instead of low-profile air cooler