Sorry, I stopped watching at 1:34 as your "graded" Pro Res was in no way a realistic depiction of color. Maybe that's what you were after, but one needs to start with realism and go from there. And maybe you disagree, but it looked just like many "graded" BMPCC videos posted around - realistic color was not in evidence, just muddy and washed out (still better than the original, of course). We have had many discussions in this forum on this point about most "graded" videos. Maybe you should look at them.
And it's ok if you want to defend your coloring as art. But that is not what most people are trying for. And "Film Convert" I think gives really bad color too.
Btw, the grading software of choice is Resolve. Resolve Lite comes free with the BMPCC, and that is what most users would employ. A tutorial using that, without crutches like Film Covert, would be more useful for most BMPCC actual or potential purchasers.
Grading has a lot more to do with how the video is perceived than lens choice, with this camera.