Sorry to hear...and yes the GC could care less. But he will win that argument because he gave you the entire set of bid documents, which you are responsible for every electrical item, whether show on the E-sheets or not.
Just read the CYA notes you mentioned.
It's not unusual for engineers to not coordinate well, especially when they are under pressure to get drawings out to bid.
It's also not unusual for them to release unfinished drawings to bid, and let the subs flush out discrepancies with RFI's and emails.
I always go over every Mechanical schedule, every Plumbing schedule and cross reference the electrical schedules. Of course this is during the bid process, which I will go on record with an RFI.
If I don't get answers through addendum or a clarification email (and sometimes bid day comes and I still have no response) ...then I am in a position to exclude or qualify specific items.
Then it's not on me anymore.
Another thing is, in my proposal letter, I specifically list the dates of drawings I am quoting. A good GC will see right off the bat if I didn't have the most current drawings
Hope it works out for you...