Eli5 why in football do they always reference rest as beneficial to the defense?

Question

So watching college football today the announcers always make a statement like “That drive took 10 minutes so the defense got a good rest”. How is that rest only beneficial to the defense and not for the opposing offense?

In: 744

Answer 1

This is also interesting to me because typically the players on the offensive line do not rotate on a per snap basis but defensive line players can.