p0stm@m! ... is 8 characters and a variation of postman ... according to one well enough informed ex NSA/CIA operator ... that will be brute forced within moments.

the point here is not to have a highly secure passphrase but to have access to a reporting feature on this tool.
other than admins or users with extended permissions there isnt much reason to handle this other than a throw away account. the only email adress linked to an account here should be a spam mail catcher you have access to.

The "advice" mentioned is literally a joke. The developers who made Phabricator like to play with words and throw (obvious) jokes around which spices things up a little, makes this environment less strict and feel more lose like when you're marking all your notifications as read.

@AndyP can probably change the content of a reset password email although I don't think we should change it.

Yeah, phabricator is taking a lot of stuff with some sarcasm, and makes fun of it.

I really doubt someone reading this advice will see it as a fact and think it would be a good idea to do so.
(I think phabricator will actually reject those choices.)

So yeah, main goal here, is having an easy to access reporting and communication platform.
It is not providing any authentication for other services, so yeah, even a "low complexity" password would be okay.
And as far as I could see, I can only enable the "serious" mode as global setting, but that will take a way some other fun facts you discover from time to time when derping a click and getting a nice notification, that makes it funny to remember this thing.

So yeah, I would personally say:
Wont fix that, as the effort would in general change the shape of this environment.