Look at how few cards have Errata, and those are fairly small additions or changes, cleaning up the wording of the card so it works like intended.
Yes, and that's exactly my point! So far FFG has only changed a very small number of rules, and only in ways that either clarify something that didn't work properly as-printed...
I'll take "Unexamined Premises" for $800, Alex. What makes you think barrel roll was working properly for large ships as printed--particularly since the fact that they changed it constitutes at least circumstantial evidence that it wasn't?