This, all of this, is just perfect.
Honestly I don't mind by the slightest strange multiclass combos at my table, so some of the things these designs were aiming to address were non-issues to me, but they ended up creating feature-sets way more interesting, free, and intriguing than the O5E classes. I appreciate in particular the discussion about Pally's utility.
I haven't understood one thing though: what does the fighter have to make it special? If every martial class have special maneuvers (which is amazing), what do they do different? I mean, if they are just "better" at it, it doesn't sound interesting enough.