I just read Tides of Change (it's a good read). Excuse me if I've missed something though. Now, there's mentions of Omicron-100 throughout that document however that's entirely fair because at the time I don't think the decree that guard systems were not canon had been given out yet? But what's problematic is letting Guard System spawned RP occur in modern disco, and continue to let it happen. Whilst at the same time, other factions have to roleplay around that and get shouted at by the communty doing so whilst the perpetrator gets off freely.
Reading Tides of Change, and your post, it's focus on what Order lost. That is fair and all, but I am talking about what they did to build back what they lost up until 822/823 A.S.
Why is Evora crowded with ships? How or what has Order done to create that overcrowding, and the repairs that would be done to fix all those ships back up? Order is not self-sufficient, surely they would have had to have contacted or made new allies in order to rebuild? I doubt Order would have been able to do this on their own. You'd need resources, especially from external groups. It's just so nonsensical that a magic super fleet suddenly comes pouring out a secretive system with no third party as witness via any role whatsoever. In the case of Rho, people delivering supplies via the supplies board would have seen i.e the Jupiter in the shipyard scaffolding.
This is the problem with Guard Systems. They're hoops of fire that factions jump through, and when they come out they have holes burned into their jacket. It creates situations that sadly encourage the factions themselves to powergame, creating falsehoods of who they are and what they have access to, and RP with themselves off the back of a system where they have 100% control over what elements float and what don't. You want to say you've harnessed the ability to control black holes and make ships that are powered by them? You got it - thanks Omicron-85. You want to say that an entire system is self-sufficient? Omicron-91 can get away with that perfectly. Official factions have had complete control over things lore wise in these systems with no dev input. You could pretty much get away with writing or doing whatever you wanted.
Next time you're in a Guard System read some of the infocards. It'll be interesting what you find
Thebes itself is currently in Omicron Mu, and it's got a normal Order IFF. I don't doubt the validity of the ship at all. Apo used to be in 100 - so it's validity and origin could be considered dubious - however it's been moved into Delta, so it's existence is undeniably canon right now. Which is fine. I don't doubt the validity of Mu either, it's not a Guard System.
What you're inferring throughout your post is that Order needs 100. Not trying to be snide or cynical here, but it doesn't. The system isn't canon and has no impact on mod lore. You can just consider everything you've done stuff you've done in Omicron Mu instead, essentially. But bringing non-canon elements into something like an Official Story Event is bad. Even worse when some factions can just ride on the wave of "do whatever we want" whilst other factions that try to preserve consistency and sense get railed no matter what. Hypothetically, if Omicron-100 was axed it wouldn't change anything in the Order's roleplay makeup. Trying to force it into canon lore creates holes and issues for factions around them though.