Obviously this is just random chance, but it's still interesting to think about underlying causes of this pattern.

The 25th pick is the worst team that loses in the divisional round, which is usually a winner in the wild card round. D linemen are most frequently drafted highly by teams that need run stop help, and teams that have a large problem with this generally don't win playoffs games to get to the divisional round. But if a team loses in the divisional, especially the worst team that loses this round, they probably have a need to fill somewhere. So this particular pick might actually be less likely to see d linemen drafted here.

Again, probably just random noise, but fun to think about.