I don't think the "sportswriters" colluded on this, phoning each other to find out how each might vote.
There was a consensus among "experts", including many here, that Texas and PSU would be top five material this year. It happens, fairly rarely, that there are two such misses in preseason polls. It's also possible both or one team recovers and goes 10-2. PSU looks like a poser, to me, after that loss. Texas I think is still a pretty good team.
I don't know of an 'expert' anywhere who thought Texas and PSU would fall this far this early. Why is that? Because both had every normal metric suggesting they would be very good.