Articulating your flaws isn't the same as fixing them.
If you just tell people what your love language is, but don't learn to show love in their love language, they still won't feel cared for. You may even be reinforcing the message that you don't care enough to adapt to them.
If you tell people to call you out on being late, but are still routinely late, it will feel like an empty apology.
We all have flaws and have to deal with each others'; for all I know this person is a fantastic manager. But I'm skeptical that this kind of document is a good way to start a working relationship. It's very personal to the author but impersonal to the recipient, giving the impression that all responsibility lies on the recipient to deal with the author's issues. I know the document tries to emphasize that that's not the case, but until you have a real relationship with the person you don't know which parts of that to trust. (Most people see themselves as being open to honest feedback, but that doesn't mean they actually are.)
If you just tell people what your love language is, but don't learn to show love in their love language, they still won't feel cared for. You may even be reinforcing the message that you don't care enough to adapt to them.
If you tell people to call you out on being late, but are still routinely late, it will feel like an empty apology.
We all have flaws and have to deal with each others'; for all I know this person is a fantastic manager. But I'm skeptical that this kind of document is a good way to start a working relationship. It's very personal to the author but impersonal to the recipient, giving the impression that all responsibility lies on the recipient to deal with the author's issues. I know the document tries to emphasize that that's not the case, but until you have a real relationship with the person you don't know which parts of that to trust. (Most people see themselves as being open to honest feedback, but that doesn't mean they actually are.)