And to me it is like a painter complaining about a museum which shines a RGB-Disco-Light onto a piece of work whose colors have been purposefully considered.

Music as well as Films are pieces of work who are only really existing in their projection, a playthrough or a concert. Everything that mangles with that projection without beeing a willful choice of those projecting it makes it harder for artists to speak to an audience in the way they intended.

There are perfectly fine reasons to change a projection, e.g. for the or visually impaired or because you just prefer it that way, but ultimately it should be a willful decision to deviate from the expected default..