But an un-fun one in that case. What is the game without any surprises, eh? Admitted, sometimes you wish the surprises wouldn't go "whooop" so much, but coping with that (or restarting once you watch the million pieces of you spin around for a bit) is part of the game. Which is why you can't play the main campaign 5,000 times with the same level of enjoyment of the first.
Personally, I think it has its uses in disabling missions and such, so that, say, you don't waste your time on some light cannon when you're supposed to be taking out the huge main gun before it gets in range to pulverize your mothership, but that just knowing everything like that could be somewhat of a disadvantage on unfamiliar models.