I have a question that i always ask myself, in case bitcoin has an error or a possible improvement who would correct it?
The answer is that "we all" correct it. While it may be a single developer that submits new code, it is up to the bitcoin nodes to decide to actually run the new code.
That's one of the most beautiful things about Bitcoin. We don't rely on anybody. We rely on everybody.
That is called Bitcoin Beauty, a masterpiece made into reality, really like ants working type.