About "pwd" in meeting URLs

Hello everyone!
I’d like to ask for your help to understand something I’ve been discussing with some colleagues.

Searching for info about the “pwd” parameter in meeting URLs, I found the following forum entry:

where a community advocate answered “releasing the method for hashing the password could allow attackers to bypass a unique join URL and enter a meeting directly, without being invited”

My question is:
What’s the real reason to obfuscate (encrypting or hashing it) the pwd?

As I see it, if an attacker somehow obtains the URL, she/he CAN enter a meeting directly, without being invited.

Thanks in advance.