According to ESPN’s BPI, the Celtics still have a 25.9% chance of making the finals despite being down 0-3

Someone at ESPN needs to fix this projections analysis, theres clearly something wrong with it. Teams are 0-149 when down 0-3 in the playoffs, and they’re saying the celtics have more than 1/4 odds to win the series still??

https://www.espn.com/nba/bpi/_/view/playoffs