It serves only to codify in Federal law the authority which HOAs already exercise:
"3) subject to the standards specified in paragraphs (1) and (2) of subsection (a), permit a community association to establish reasonable written rules concerning height, location, size, and aesthetic impact of, and installation requirements for, outdoor antennas and support structures for the purpose of conducting communications in the amateur radio services."
Why anyone would think this serves any useful purpose is dewildering. Yet some apparently do.