Cool story bro.
Before you start making condescending posts and acting like an ass in general, the point is that the classes that have not been crossed out on the chart can be cross referenced in multiple places within the dats, whereas the others can not, implying that the classes are more likely to be making an earlier appearance (if at all) than the others, which is actually useful information.
We've known about Assassin and other for a while, now. It's not new information.
XI Wiki



