Where'd someone suggest that? Good headlamps put light where you need it and, on low beam, keep it out of other drivers' eyes. Lousy headlamps don't do one and/or the other of those things.
Speaking as the guy who wrote the (literal 38,500-word) book on the subject of headlight glare: you're right, it has. And I still don't see how that's relevant to this thread.
