That's the crux of our debate. Not every creator thinks that way, some just want to find their audience and sustain that fanbase indefinitely ....and some do want mega exposure, an "all bases belong to us" reach.
The OP's point was more in lines with pandering to reach either goal was bad.
My main point has been the business side is more actively at fault for creating the pandering through hype/marketing tactics.
Creators increasingly have to sell their visions through that fiscal/corporate culture. You're taking studio notes through the dailies, studios retain final edit rights, IP rights have skyrocketed in value and supersede other creative decisions.
Much of your argument holds up when talking about the best of things, I'm talking about the common/worst practice.
I mean seriously, this critic's quote was used to mass market a film last year...
" "Bumblebee" isn't just the best "Transformers" movie Paramount Pictures has made. It's a great movie. Period."- Kristen Acuna.
I'll admit, I'm not a Transformers fan or even saw Bumblebee, but Damn! They used a quote that threw shade on the entire franchise to tell a different demographic it was safe to see this film because at least it was great. That's some weird marketing... and dictates that the studio's marketing team didn't care about what remained of the core fan base. It was willing to trade it for a different audience.
The cynical part of me says the whole film looks constructed that way... from business decisions to cast a younger female lead to making it a prequel to shed history/mythology of the earlier films and play on 80's nostalgia more heavily. You could argue they're creative changes but even so... they served the business side more than the creative vision.
I think it's where we differ... Your points are from a view of the best that the field has to offer... I'm talking about the worst.