Maybe. The outcome of banning "connectors" typically reduces connectedness between cliques, rather than within cliques themselves. (In graph theory, when a group of people are well connected that share similar interests, we typically call that a clique.)

When people complain that people are increasingly finding themselves in echo chambers, and that "people don't talk to people from the other side," connectedness across the graph is dropping, while connectedness within cliques remains strong or increases.