But I understand why avex made the decision

Not only would avex look bad ('working together with maffia' or 'having ties with maffia'), also JYJ would look bad. It's sad that they are stopping activities, but I rather have Tohoshinki coming back as 5 in Japan than just JYJ
"Concerning the product releases and the services currently being provided, there will be no changes made. Additionally, there is
no change to the exclusive contract of Tohoshinki (5 members), whose managed by SM Entertainment.
As we have consistently stated, we will, with all our might, give our support, so that Tohoshinki’s activities can be resumed."
Now they better include all JYJ's a-nation performances on the DVD as comfort