Well, if you are at least a partial preterist (as am I) then the culmination of the Olivet Discourse (and other prophesies of Jesus) is the destruction of the temple, and it was to occur within a generation of its utterance, when some of those hearing would still be alive. That would place it roughly somewhere in the range 33CE to 80CE. And considering Jesus went out of his way to send the message that some would still be alive, which is hardly worth mentioning if was to happen on the near end of the range, it seems reasonable that it was to occur in the latter part. Which it did.
Beyond that my own opinion would be to refrain from attaching any significance to the fact that it happened in the year 70.
Aside: I personally prefer using BCE and CE, simply because the bible does not instruct us to use BC and AD in our calendar, and I’d rather not make a fuss about things that are not required. That said, I was bolstered in this view by someone who pointed out the obvious but which I failed to recognize, namely that BC makes no sense. There was no such time, ever.