It’s obvious that people are indeed doing or thinking of doing just that. Don’t get complacent just because things have not changed yet. There is a threshold to cross and once it crossed, things change very very fast. Currently there’s no software out that is as mature as lemmy, but if the trust thermocline is breached, people will prefer to switch to something substandard than support a project they don’t believe anymore.
Your biggest benefit as FOSS developers is your community goodwill. I can’t stress enough how much you need to be careful on what you say and how you communicate to maintain it.