There already IS a "Flag Act of 2005" in that locality.
The purpose of the ordinance, as described by said prosecutor, is to prevent HOAs from banning the display of the U.S. flag by property owners.
It is clear you did not read the article.
The HOA is the owner. Secondly, the prosecutor brought up the ‘Freedom to Display the American Flag Act of 2005’, a Federal Bill, nothing local about it. Property rights be dammed.