I'm aware of the FR5, and how it works. I've already spoken to a Dev and a GM about how the faction is going to respond to it in terms of gameplay, and I'm fairly certain little will change in regards to the faction itself.
Regarding relations, what our diplomacy sheet says is pretty much irrelevant as what it says and how people react to us are two completely different cases. The *MR| has considered the IRMM, Legion, NC, and QC as hostile for a considerable amount of time, and while indie OCs are dragged into the fighting we will still consider any who stay neutral as neutral. The diplomacy sheet is, and in the *MR|'s case has always been, a template for how the faction as a whole views everyone else. It's not mutual.
Regarding battlecruisers, no.
While, yes, we cannot produce battlecruisers ourselves, there is no reason to believe that the faction cannot have access to them. The premise of the faction includes defectors, which given the extension of the Maltese military is absolutely possible. I won't limit people who decide to join with warships, just as long as they're aware of the RP repercussions of doing so.
Finally, the RCR...
I personally won't believe that such a canonization process exists in the state that it's proposed, that much I'll point out here and now. It's clunky, not thought out, and in the case you're pointing out can have detrimental lasting impacts on factions that wish to go against the established norm. The specific point you're noting I feel is targeted at experimentation of concepts, which goes against the very concept of roleplay, and the *MR| as a whole.
In regards to the faction, *MR| predates the RCR format by over a month, which I feel gives it a class of exemption. Whether you or anyone agrees with it or not, it's typically unfair to pin new legislature on concepts that predate them.
In short, I don't think it really applies to the *MR|. Thanks for pointing it out, though.