The consequences of privacy loss can be severe, up to and including violent death (partner violence, anti-LGBTI attacks, religious persecution). A person with a moral (and likely legal) obligation to protect individual privacy cannot lightly discard someone's fundamental rights to favour the marginal benefit of others.

We haven't seen a Zoom log found in an open S3 bucket yet, or a leak via fb, but experience says that it is only a matter of time.

So if you're going to mandate Zoom, own the risk. Mitigation is possible: provide recorded streams for secured download (if safe/ethical/notified to record other participants!); provide a work laptop with a non-identifying config instead of a BYOD; many other options.