I would love for Obsidian to get another crack at Fallout, but I don’t think they are the only ones capable of making a good fallout game (though they would undoubtly be the best).
It just takes passion for the property, and a vested interest in the world. Something Bethesda is clearly lacking. Bethesda seems to be in the phase of “throw darts at a bunch of sticky notes on the wall” of trying to figure out how to make a game, and it just leads to a disjointed experience.