I just checked my blue Endura FFG, it is the first time I have realized it but yes mine is also sharp. I have been opening it with bare hands and haven't ever had a problem with it cutting into my thumb.
Picked up a new endura with the wave feature this weekend and it immediately reminded me of this thread. The spydie hole was really sharp compared to my manix 2. Going to have to get out the sandpaper to smooth it out a bit. The factory edge on this knife is crazy sharp though. Liking the knife so far, but kind of wish they would do it in a ffg.