I think part of it was----they didn't think there'd be market for the Remastered with the original FX.
So they intended the only 'remastered' version to only have the new FX. And therefore the two thing (new Fx and cleaned up picture) would be synonymous (sp)
When they saw there was a market for the HD versions with the original FX they then had to make two remastered versions. and it created an even more evident mistake in the naming they had started with in 2006.