That is a good idea.
If you want to pay millions oto utilize a popular IP, the last thing you need is lots of vocal fans argueing that you don't respect the source.
It obviously should not be your only focus group.
No, no no - you're supposed to design by committee for "modern audiences", and then run it by sensitivity readers and diversity consultants (preferably ones who actively dislike existing works in the franchise) and make any changes they feel appropriate so as to file off any edges that might offend people unlikely to engage with the work in the first place if they weren't being paid to do so. Don't forget to insert $CURRENT_YEAR progressive politics as hamfistedly as possible, in a way that will make the story feel dated within a few years of release. You're supposed to either ignore or actively antagonize existing fans of the franchise, and make a point of not considering their views at all. That's how you get a well performing remake/remaster/reboot/sequel in an existing IP!
You know, a masterpiece like Velma! /S
Like guys, sticking Lady GaGa in that lingerie is trying too hard. Putting Margot Robbie in....whatever the fuck shit she wore in her movies was trying too hard. The character's default is a fucking leotard that may as well have been painted on. You can put either of them in this costume and the fanboys will line up around the block AND it will be thematically on point for a fucking change.
Yeah, sure, but that version of Harley was very much submissive to the Joker and very much a sidekick. If she's going to be the main star and a badass then they want to move away from that because of the baggage it holds. Channel more Ms. Quinnzel who's also named for a motorcycle and less Harlequin because she's tied to the Joker. Also as far as Batman villains are concerned Batman: The Animated Series is about medium goofy, which doesn't align with their goals anymore. But then someone also thought Jared Leto Joker was a good idea, so....
These IPs aren't popular because of vocal fans. They are popular because they appeal to general audiences who don't make their identities around this stuff. The MCU did not become the franchise juggernaut it is by listening to comic fans.
I could point out the comic inspirations for most of the storylines and the generally not shitting on the existing characters for most of it, at least until we had the scene in Endgame that inspired The Boys to do the "Girls Get It Done" bit. Most of the big differences up through then were either because they had some big name they wanted to shoehorn into a part despite them not fitting the right general look, stuff that would be hard to explain promptly in a movie format (for example, the power of the Scarlet Witch), or stuff that was admittedly kinda dumb (Thanos' motivation in the MCU was kinda dumb and short sighted, but still better than "I'm horny for the personification of Death and want to impress her by doing galactic scale mass murder").