It's a much bigger issue than Disney, trust me. There are other parties who were pushing for the same thing - the Gershwin estate, the Rodgers estate, probably the Berlin estate too. Disney just gets singled out because everyone knows Mickey Mouse.

All this aside, the issue with color grading is often (but not always) filmmakers being given carte blanche to change their movie because it's their movie, and possibly (as someone theorized) as a condition of participation on commentaries or documentaries.

In a lot of other cases it's post/transfer houses who seem to have no understanding of what an older film is supposed to look like, and regrade everything in line with modern sensibilities, or to make it pop on a digital LCD display.

If only someone grading an older film were required to have worked as a film projectionist, like poita was...