Chances are they had won a few matches (which boosts your ships MM rank) and were queued together (which boosts your ship's MM rank). That ups your matchmaker weighting by a great deal. You didn't include the number of players online at the time in the pic, so it's hard to say how many games were probably running.
Either way, why does it matter? Losing a game as an underdog means nothing. Your streak and W/L ratio aren't impacted by underdog games, and you get progress towards a set of pretty nice rewards if you win them reliably.
I can say, from the middle of the pack, that I tend to get queued with either newbies or vet games depending on who I have running with me. (Random novice crews tend to get me into novice games, the 40-45 friends I have tend to get me into high-end games, and my friends tend to get crews that are average in the low-mid 20's, with occasional 30's).
We also would need to ask them if they joined through MM or by the custom game tab. Otherwise we have no info about it.