I'm sensitive to complaints about Zoom's privacy/security shortcomings. I wouldn't have an important conversation on the platform.

But Zoom clearly offers the best videoconferencing product along many dimensions: ease of use, quality of video, etc. Students are already receiving subpar instruction due to the unceremonious transition to remote learning by schools that clearly aren't prepared. So unless the privacy/security issues are actually impacting learning on a large scale, perhaps it makes more sense to stick with the product people are already using.