https://blog.zoom.us/wordpress/2020/04/01/facts-around-zoom-...
Because "thousands of enterprises around the world have done exhaustive security reviews of our user, network, and data center layers and confidently selected Zoom for complete deployment" and they didnt "design the product" for these "new, mostly consumer use cases", it means that up until now they couldnt have forseen that lying about e2e encryption to sell enterprise subscriptions was an issue.