I think they (the people who say that) have either: an innocent fundamental misunderstanding about how the site works, a stubbornness about trying something new and strawmanning it sight unseen, or a malicious intent to keep users from migrating to a new platform (so they can continue to demonize the other to their audience on the current platform).
Something this platform offers is the ability to create your own platform, and integrate it with other hosts as you see fit, along with excising hosts that put out content you do not want to see (this can even be the “designers” community).