^ There are plenty of non-JE people that get major tie ins too.
And a lot of the people that do have major tie ins, don't necessarily need them to sell well either, but they do need them to sell like stratospherically high though. Like B'z didn't exactly need Buzzer Beat for Ichibu to Zenbu to sell well; it would have anyways. But having a successful drama tied with it made it sell even better. Same thing with Ayu probably. Everything else I agree with though. Still though, Ayu having a major tie in for once would be nice. Dandy Daddy though not a huge hit drama was at least a step in that direction. It didn't seem to have a positive effect on her physical sales though maybe it is what helped drive the digital sales.