Conference organizers are free to choose the tools they like to do the job.
However, tools matter and the medium is part of the message. The adoption of proprietary tools and a platform that has censored academics does send a message, but a wrong one.
@dimitrisk Btw LibrePlanet 2021 had a cute little 8bit arcade-game-like space for us all to wonder around in as people, cats, or catpeople! With builtin in-browser videoconferencing!
That bit of fun often seems to be missing...