The new face of 'voluntary release'?

[Publius]

After seeing Ron Washington lose his challenge tonight in the first inning, it appears (just speculating) to me that MLB has issued an instruction to its umpires revising how "complete control" is to be judged.

Andrus gloved the ball and had it in his throwing hand when he dropped it, and the ruling went against him.

I can understand how the calling umpires made the calls they did--I thought Andrus dropped it in real time--but after seeing the replays not upholding the challenges, I believe something has changed in the MLB interpretation of this play.