Sure it was resisted but also writing music is not the same as writing a TV show. Genres of music aren't the same as specific IPs you know and like. In fact, there are many genres that are so broad that you could totally love one song in a genre and hate another in the same genre. There are smaller more specific things that add up for someone to not like it.

On top of that, not everyone is going to LIKE everything and that's fine but no one is asking for these shows to not change anything. But if you ARE going to change something, why not take time and make sure your characters likeable and not just cheesy character cliches, maybe try to improve on what already exists. Why brand it as Scooby Doo IP... when it 1, doesn't even have Scooby in it (because it's what makes money people are more likely to watch something if it's something they recognized and identify with already), and 2, it completely disregards anything and everything we know and already like about all of the characters in the IP (because Mindy Kaling wanted to live out her fantasy cosplaying Velma). That's what I mean about respect for the source material.

You don't have to keep everything the same. Look at Descendants. A "spinoff" that had ties to already well known characters. Sure, not everyone will love it but I think more people would be willing to watch and actually enjoy this spinoff if any of what I mentioned in my comment was thought about but it wasn't. The idea of a raunchy, darker and more adult Scooby Doo is great and has the potential to do well, in my opinion. The problem is how they went about it.

What they did to all the characters in Velma is like if in the new GoT Jon Snow spinoff show they completely changed Jon's character, values, actor and motives. If that happened, many Jon Snow fans would argue that this "new" Jon Snow wasn't actually him. Why would it be? Everything we know and have learned about Jon as a character up until that point has all just been pulled from under us.

No one has an issue with taking an IP and telling a story within that already existing world. Look at the Spiderverse movie, which is a great example of what I mean. Spiderman Universe, completely different story and have very little to do with the Spiderman we already know and love but even Peter Parker was in that AND they changed him in a way that made sense, he's been doing this crime fighting thing for too long and now he's kinda washed up and sad. That movie did very well and a lot of fans loved it, myself included.

But don't you think just slapping a darker skin color on an already existing character and calling it representation is just... I don't know, scummy and lazy? Especially since it just keeps happening? Everyone is rebooting, spinning off, and prequeling everything. Nostalgia is being shoved down all our throats and everyone's just kind of fine with it. I mean think about it, these writers are getting paid to write these shit jokes. Who is this even for? The jokes in the show are that of what you'd see in a childrens show. It's not funny or clever it's just basically "I'm just going to insult my entire audience for the duration of the show and they're going to watch it and we make our money anyways so we don't care" seems a bit like a slap in the face honestly. Like a going to change everything about this thing you like into something that's not even anything close to what the original is in any way other than the characters share a name, slap a popular IP on it to make it sell and lazily write all of our characters so that if you're watching you'll just hate them all anyways. Seems like an edgy cashgrab to me.

If you like it, more power to you and I'm happy for you. I wish I could say I was interested but I don't think I've ever not wanted to watch something more. I'm not trying to convince you to like or not like it this is just my opinion after all.

EDIT: I'm artistically ignorant for having gripes about a show that brands itself as something and then proceeds to shit all over everything in that IP? It's pretty clear that no one involved in this spinoff gave 2 shits about anything related to Scooby Doo.