That's king of the way it's supposed to be. I think we have several shocks on the race car with original seals and O-rings from 2003. That's after literally thousands of miles and a lot of those at 150 to 200 degrees.
Wonder if the bottom cap assembly on the FOA eliminates one of the O-rings?
Either way it just reinforces my opinion that when FOA takes care of their issues they will have a shock that is priced very near the other major players.