We’re not talking about a cult or an abusive situation, we’re talking about a community that is hosted on a platform which has problems that are growing over time (ownership that is gradually enshittifying it). But even if it were an abusive situation, people still find it hard to leave. Do you call women in abusive relationships hypocrites and/or cowards if they encourage others to leave their abusive relationships while struggling to leave their own?
Different people have different ties to a community as well. I think many people who left Reddit forever did not have very strong ties anyway, so they had less to lose by leaving. People with stronger ties are going to have a harder time leaving and they’re going to complain louder in the (possibly forlorn) hope they encourage everyone to leave along with them.