I think their prediction of it taking so long are based on polling over the last few days which seldom seem to be accurate these days. There's only 3 out of 623 precincts reported so far. Once more precincts start reporting, particularly those where Jacobs is considered the strongest, that could all change.
My understanding reading some polls, there was a huge undecided vote.
Does not say much when an issue as important as national security and immigration when it does not draw a larger turnout...from either side.