Why do you see this as a strong dependency? The beauty of it is that you can change the model whenever you want. You can even just code yourself! This isn't some no-code stuff.
Well, these people were lucky to have you. Unfortunately, many people just want to not be disturbed, and it's much easier to ignore someone through Slack than in person.
I joined a new company in September, and most of my colleagues were fully remote. I have enough experience and was able to handle myself, but when I imagine this situation in my first year, I'm sure it would have been much harder.
Don't you think full remote is kind of selfish? I mean, I also love it, but what about new hires and junior? How are they going to learn and improve if each time they have a question, they need to post it on slack and just wait...