You cite "a professor", and this article is also about a singular professor. That implies that this is the exception, not the rule. Students have ample opportunities elsewhere for exposure to "enterprise commercial software".
The delta between Jitsi Meet and Zoom or Teams for video-conferencing is minimal from a user experience perspective. The idea that a CS graduate from MIT would struggle to figure out Zoom or Teams at their first job is laughable.
(I believe the Xilinx-forked kernel uses a derivative of these patches)