jp,
In 2004, Boeing 'won' the contest. Then it was determined that the rules weren't quite followed and the competition was re-opened. Did you complain about that decision?
Again, while not advocating for the lesser tanker to win, whichever it might be, complaining about this decision doesn't seem warranted.
How about a novel concept of issue the proposal, then whomever meets it following the rules without outside influence, with the best price, wins?