If you had posted on the GPG 5/10 years ago that fans would have be complaining about the music being played after a Premier League victory over Everton in a brand new stadium.... [you can add the rest yourself

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The club aren't "actively dictating" anything. Anyone who doesn't like the post-match* arrangements may just leave. Just as those who didn't like Kool and the Gang could hurry out of GP.
* - I say "post-match" because the pre-match stuff seems to be well-received, while the h-t arrangments are largely unchanged eg Sir Peter of Gilham on the mic and Mr. Benham picking a song etc
You can fully appreciate and have absolutely loved the last tens years, be entirely grateful to Matthew Benham, fully support Thomas Frank, admire our squad and how well they are doing this season, and still have concerns about off the field stuff all at the same time. But you know that.
They are dictating the atmosphere, supporters efforts will be drowned out immediately pre and post game, based on the last few games, by the sound system (as was the case when the West Stand errupted into song at the final whistle of the Liverpool game, only to be drowned out by FFD, which was a real shame as the noise was starting to travel round the whole ground and it could have been a moment to savour).
I think the club have entirely good intentions but are trying too hard to force an atmosphere, with the end result being a bit plastic and shallow. We’ve got a proper home end for the first time in decades, the Bournemouth, Arsenal, Liverpool and Chelsea games showed that a brilliant, organic atmosphere can be created by the fans, so let them get on with it.