Their intention was to deceive users that the communication was encrypted, when in reality it wasn't.
I'm in no way saying it's impossible that Zoom did say E2E encryption while knowing that's not true, but I could imagine a scenario where a security person says "Yeah, we're encrypting connections to our backend" and a marketing person researching E2E and then saying to themselves "Yeah, sounds like we're doing E2E, let's write that", because this stuff happens all the time in the industry.
> Their intention was to deceive users
You sound so sure about their intentions, do you have any actual proof of this that others are missing? Again, I'm not saying it's impossible that their intention was to deceive users, but as an engineer, I always favor proof over guessing.