First of all, I can always respect JsArclight's point of view. His posts are always well thought out and well grounded and for the most part, I usually can agree with him. I also know what he means by sticking to his guns until proved otherwise, because we all here to gain better knowledge of something that we are all fans of, whether or not we take it seriously, casually or fanatically. There's always someone in a place like this who loves to shove the right answer in your face, for reasons unknown. Maybe it's to feel better about themselves, like I said... I have no idea. It would be cool if we can keep the arguments civil and informative, but hey...in the end... I don't really give a crap...
Here's a an essay by Dave Deitrich in which Egan Loo helped straighten out about the Macross timeline. There's no direct quote from Kawamori or Chiba but I would guess if Egan Loo had a hand in it then it can be taken as source.
timeline
As you can see DYRL? is treated as an "entertainment documentary" made in 2031. And there's no mention of DYRL? as part of the official timeline.
Conjecture or official, best thing anyone can do is email Egan Loo, who is always happy to help in cases like this. Though I don't know how many times he's received this email before...