Sawyer is by far one of the most open developers about what he's responsible for and what he does. He makes mistakes, but overall he's one of the best designers Obsidian has.
(though this says more about how lousy most Obsidian designers are)
Sawyerless Obsidian projects give you The Outer Worlds and Avowed. Quality stuff, right?
Josh Sawyer isn't hungry anymore. I don't know what it is, because it happens to so many developers in the industry, maybe it is burnout, maybe he's just too wealthy, too distanced from being a player of the game himself or just becoming old. The reason doesn't matter, it just happens all over the industry all the time.
He used to have something, yes. Now he doesn't. Now he makes games like Pentiment.