I got a used pair of Shimano 105 BR-1050 sidepull caliper brakes to try out. I have the matching brake levers too.

They work great, but I noticed that the front brake shoes are pretty dramatically offset from each other when viewed from the top.

I don't see any issue with the braking power. The rear brakes don't have this issue (the 2 brake shoes line up when viewed overhead).

What might cause this? One of the arms is slightly bent perhaps? Is it an issue that should be addressed? Or a common issue that can be lived with?