Yes, it saves server resources at extreme scales. The client-side savings are purely theoretical. If their JS bloatware crap takes 2s to respond to a click, the

Yes, it saves server resources at extreme scales. The client-side savings are purely theoretical. If their JS bloatware crap takes 2s to respond to a click, the 3x 30ms network roundtrip to fetch a resource with a new HTTPS connection hardly matters.