Why Is Any Country Supporting Locking In Life + 70 Copyright Term Protection?

One of the key issues raised by the head of the US Copyright Office, Maria Pallante, was that it was time to perhaps rethink our current copyright term of life plus 70 and lower it. There had even been some indications that even the maximalists at the MPAA and RIAA were actually (for the first time) open to the idea in her proposal to officially roll back the term to life plus 50 with the ability to "renew" for that last 20 years.