If this is acceptable to view a meeting without permission under abuse pretense, then it's also possible to do so even if someone's doing nothing wrong.

Even worse, if their system is compromised, a bad actor could monitor free users' meetings without any protections. And what is stopping those bad actors from getting a paid subscription, or maliciously gaining access to a paid account? Or these bad actors could use another system that doesn't compromise (Signal) or host their own.

Security comes in layers and logs. A system without these layers and accountability isn't secure. Zoom isn't secure, and is using law enforcement as a scapegoat and pretense to keep their security low.