You forgot
Production Designer, Costume Designer and
Casting Director. Together with
Composer, Director of Photography and
Editor, the relative importance of these production roles varies with each film, and for any one film is likely to remain largely subjective. So I think you misspoke in suggesting there's been a misstep. You are correct about the program being fantastic, however.
No, but there are plans for custom career types.
I'm not sure what's meant by this. There's not much point in collecting any additional credits unless they are related by career type. But
custom career types suggests these may not be supported by plugins. It seems to me the ability to track any of the significant production roles in the same manner as
Composer would be much more useful than a custom career type that's not filled by plugins.