[Trumpet6]

Early on the author states "the Fed is keeping them low. That’s true only in a very narrow sense."

He then proceeds to stay in this narrow sense, while explaining the theoretical framework driving the Fed's decision. While it is of course interesting to better know their reasoning, this article does not amount to a more nuanced response than "the Fed is keeping them low because the Fed thinks its best".

Personally I think that's close enough to "the Fed is keeping them low" to not really bother with the distinction.