If a dealership's marketing says they last 100k, you can be certain they'll go 200k. They don't call them stealerships for nothing.

I'm as good of a mechanic as a diy gets. I've rebuilt entire auto transmissions instead of just sticking in another unit. I've regearied rear ends (which did get interior bearings while there). I do head gaskets as favors to friends.

I'm fairly certain all of my 200k+ mile vehicles have had perfectly safe and functional bearings.