Full Groove Main Bearing Set - Thrust Bearing Not Fully Grooved

I ordered a set of fully grooved Mahle (Clevite) main bearings from Summit. First time I have ordered fully grooved main bearings. I was surprised to see that one of the thrust bearing halves was not fully grooved while all the other 4 journal bearing halves were fully grooved. I called Summit and they confirmed that that is how they come per the Mahle catalogue. It was not a mistake.

Do other manufacturers provide thrust bearings where both halves are fully grooved? I am curious.