Yes, but go ahead and try to tell any martial artist that blocking is a foreign technique. Look at any boxing match; Block/Counterpunch is STANDARD to Unarmed combat.
Right, but it most definitely is not
a foreign technique in FC even without having the Parry trick. Martial Arts lets you use a non-standard attribute for defense which, depending on your Dex and substitute score, could add as much as +5 or more to your defense. Any attack roll that is lower than the target's defense may well be a block. In the course of a normal combat, if your opponent attacks, misses, then on your turn you attack and hit you very well may have blocked and counter-punched.
Martial Arts already gives some pretty hefty bonuses. That a Martial Artists has a feat to help them Parry does not seem like an out of balance cost.