I think everyone is patient enough, it will be 2 years since MIJ so... and I think we react like this because it is her 20th anniversary! It is not common! For me it is a big event, it is something awesome for an artist to celebrate all these carreer's years.
And it is really cool for Ayu to do all these tours, I know how she loves the stage, it is where she is the most happy BUT not all of her fans can celebrate though these tours. I cannot celebrate this anniversary because I can't go to Japan and see her live. I feel emptiness toward this anniversary. There nothing besides these tours and it is a pity.
Ayu is trying hard, and probably she is tired but it is her choice. I think there were others ways to celebrate this anniversary: an album and a best tour.
JTB was a great concept, it is sad she didn't keep it for this year only.
But like we said: wait and see