In the comments of the original video, someone translated his words. Sebastian told them he was going to mention Civil War in the midst of his Romanian just to mess with the audience. So no, he actually didn't spoil anything from the film.
''Friendly reminder that Bucky doesn't have to ''redeem himself''. Nobody has to redeem themselves for something that was done beyond their consent or capacity to control. Bucky has to reclaim himself.'' THANK GOD SOMEONE SAID IT!!!! / Bucky Barnes
even if everyone is telling you that something wrong is something right, even if the whole world is telling you to move, it is your duty to plant yourself like a tree and say, no, you move #wonderwoman