I've already answered this (and changed my initial opinion).
One can analyze controller vs defender as "controller has weak defenses and prevents enemies from doing what they want and acts at range; defender has strong defenses, and prevents enemies from doing what they want, and acts in melee". But that's simplistic.
A better analysis, IMO, is "controllers prevent enemies from doing what they want, are offense-oriented, and must be protected; defenders simultaneously cause enemies to want to attack them while making themselves difficult to successfully attack." Using -that- analysis, there's a lot of flexibility in the "ranged defender" concept; one just needs to factor "I'm at range" into the package.
One can analyze controller vs defender as "controller has weak defenses and prevents enemies from doing what they want and acts at range; defender has strong defenses, and prevents enemies from doing what they want, and acts in melee". But that's simplistic.
A better analysis, IMO, is "controllers prevent enemies from doing what they want, are offense-oriented, and must be protected; defenders simultaneously cause enemies to want to attack them while making themselves difficult to successfully attack." Using -that- analysis, there's a lot of flexibility in the "ranged defender" concept; one just needs to factor "I'm at range" into the package.