On MLBNetwork, they are talking about how not only are 3 true outcomes at all time highs, HBPs are as well. They mentioned the Marlins and Acuna. John Smoltz (obviously a major figure in Braves history) said part of the reason for all the HBPs is that guys (including Acuna) aren't getting their hands out of the way so that they can keep their hands in a ready position to do damage.
I don’t think the A’s would have made this trade based on that context you painted and I’m pretty confident they had those same thoughts. With that said, it makes it a bit more skeptical if the trade was made because of his hand injury that they feel could be more damning from their perspective. Let’s be real, no team is going to get a pitcher like Luzardo for Marte unless that team feels he could be somewhat damaged, wouldn’t you agree?