I too have been second guessing myself and looking for another source because of a comment another user posted.

My question is this, BCC has a way to sense sudden changes in hashrate and would automatically recalculate difficulty within 12 hours on sudden change, whereas legacy BTC will take days to change diff.

So, if this hashrate is not completely accurate, like from a multi-day average or something, then wouldn't we already see a massive drop in BCC difficulty?

I just checked and both legacy BTC and BCC still have the same difficulty. This is most likely the reason that BCC has stopped submitting blocks temporarily and this is also why miners are probably dropping off to altcoins rather than switch back to BTC Legacy.