Earlier quoted context omitted.
Retirement is when you stop working. Financial independence is when you stop having to. They are different.
1. That's not the common meaning of 'financial independence' no matter how much you repeat it, it's really closely-associated with the coming-of-age rite when you no longer rely on financial support to survive 2. I can't imagine being independently wealthy & keeping my day job but I suppose it's conceivable!
2. For example, all employees at the VP and up level at Google, Facebook, etc., make more than a million dollars are year. It doesn't take long at this level of compensation to have more wealth than any reasonable person could spend. Yet they still work, normally not to satisfy an unmet financial need.