^ I really didn't think we were disagreeing that much. lol
But yeah of course I don't want Ayu to end up like Seiko in terms of what you mentioned, but honestly as a female artist in Japan that is way better than what most of them get. (which is nothing)
As for the re-airings, they are just like any other network - they need to fill their time up with something.
Almost always the stuff that they broadcast they do so more than once. I've even seen them re-air concerts as far back as the 80s!