Josephina for professional, infact Josephina for Developer!
I agree with pretty much all the points you make. And the stuff you added from comments.
Great breakdown of the many issues fixers have to deal with. Before crit reducers, with hawk mk 5 and 40% cap, fixers were a bit over the top. So I guess FC thought they needed to nerf. However, this could have been done with a few of the changes you mention. But all of them, has been way over the top.
Personally I do ok at BS, aslong as there is not more than one NT (preferably none). But I have played for over 3 years and have no more improvements I can make to my fixer, I should be above average. With all that work, what if I had rolled a less nerfed profession..?