Chest Weighting

I have seen A LOT of posts with in the last few minutes about people getting Baptiste on the first draw (myself included). I'm thinking SEMC may have changed the algorithm for chest rewards. Maybe now it's more heavily weighted towards things you don't own. In my case, the only hero I didn't have is Baptiste.

If anyone who pulled or pulls Baptiste from their first chest could comment with how many heroes they own, I'd appreciate it! For science!