[Nition]

> In the future they will come with their 'ready' solution, already 'working' and be even less receptive

This has already been common in the audio engineering world for some time, as home demos of music approach professional quality. As you forsee here, people get used to what they have and become even less inclined to accept changes in a new professional mix.

[testdelacc1]

There was this video which showed film directors doing something similar. They film their scene with “filler” music previously used in some other film. Then they hand the scene to the music director and ask a score for it, which forces the director to make something very similar to the filler music. It then makes all film music sound similar.

This was only possible due to the “productivity boost” of digital editing pipelines, which allowed directors to edit immediately after filming.

https://youtu.be/7vfqkvwW2fs from 5:50 on but the whole video is a masterpiece.