I happened to run across a video which is highly pertinent to this situation.
https://www.youtube.com/watch?v=IC2h2bSZJao
That's pretty much what you can expect if you try the "I'm inside I'm not opening the door" strategy. Like you can see from the end of the video, the cops didn't really have any ability to charge them with anything as long as they exercised their shut the fuck up skills (which, to their credit, they did a great job with). But all it accomplished refusing to open the door was to make the situation a lot more violent before the conversation with the cops happened where they refused to say anything.
I think, probably, the homeowners were correct that the situation wasn't that big a deal in the first place. But, they made a pretty serious mistake by listening to your brand of TikTok law and getting their door destroyed and getting arrested as a result, instead of just walking outside and having the conversation pre-handcuffs.