Max, stop being wrong all the time.
Not sure why you quoted me, then wrote nothing that actually addressed the quote.
I said it was missing data throwing the rating. I did not even say it should If you knew anything about Glicko, which my non-quoted post addressed, you would know how it treats unrated players and quickly incorporates them with the rating after just a few matches. No previous tracking needed. It just starts looking at a certain ship/build as if it were a player, and starts calculating. Popular builds that do well get ranked high very fast. Others can be forgotten if they are used little and unsuccessfully (basically treated as unranked every time).
By the way, Mobula and Junker have 248,832 possible builds. Pyra has 20,736. Squid has 1,728. Goldfish has 720. Spire has 8640. Galleon has 90,000 (I think).
That is a total of 619,488 build possibilities. That is not a very large chunk of data to today's servers. Very possible to track every single one as if it were a player.
Finally, I very much doubt if you took flares against an equally skilled team and won. And of course the crew matters. That is what the other FOUR MMRs are for. Take a silly, low MMR ship, with a good crew, and it will still give the other team 'underdog' if they are low enough MMR.