Marvel Chronology Project

Was it ever determined if Hulk: Grey #1-6 and/or its flashbacks were canon? Is this discussed in any of the Archives (if so, which one)? Did anyone manage to intertwine the FB with the early issues of Hulk v1?

IIRC, we decided the flashbacks were non-canon by way of unreliable narrator. Can't check Archives right now to verify though.