
In the aftermath of the Yuuka graduation announcement, this is something that many blogs (even International Wota - though was perhaps said with more irony than truth) said. Yuuka graduating = death of S/mileage.
Is it the case? I really don't think so.
That isn't how this industry works. If a graduation, even of a popular member, signalled the end of the group, then I'm afraid to say Hello! Project would have died very early on. Instead we find that our favourite groups are still going strong.
The truth is that, while the Yuuka and Saki leaving H!P is a great loss for S/mileage, it's not the end of the world for the group. Those fans who don't find a new favourite member will vanish, sure, but that's not so much a loss for S/mileage...