Speaking as one of her fans I actually appreciate the spread-out farewell with one last big concert and a solo concert and a month of Nyana before the members-only stuff before she actually goes dark. She actually told members about this a while back and asked for it to stay hush-hush, and even before THAT she had implanted the idea of her going away and rebranding into viewers' heads for weeks. She's giving people time to process it and making it so Nyana goes out with as much fanfare as possible instead of just dropping a graduation notice on her fans.
It's like /vt/ can't comprehend a sincere goodbye to your friends or celebrating something dear to you, holy shit.