I know it does, but there's no way that's possible in SCC chronology if John is fifteen (going on sixteen) in 1999, which is why this is an SCC timeline only - I've seen others that are general Terminator timelines, referencing the series as well as the films, but none that give a direct, uncontradicted and (relatively) uncomplicated timeline for those watching/writing SCC specifically.

It's also why the first footnote is that, where there's any kind of conflict, show canon supersedes movie canon. As a fan of SG-1 (and, before that, BtVS), it's something I'm used to; when discussing show canon, the movies can be used to supplement show canon, but they never overrule it.