If the Comfortable Solution has to do with Morello, why does this path no longer exist after the 4th task? Strange! What has changed since then? Sophia - I don't think so; Morello will still exist after that, if he's really the way out.The "comfortable solution"has to do with Morello.
Why we need to do up to task 4 to carry on with the mother/son is not known.
If I am to speculate, after the 4th task the cause of the blackmail will change. That's why Dylans no longer plays a role as the cause of the whole story with Aiden.