Sigh. So many things in the world are like this. It’s not a bad idea, in theory, to favor more recent pages in search results. Finding 4 year old information is often not what you want. But in practice, when everyone knows this bias exists, they just fiddle with their pages daily to try to fool the algorithm. It’s must be aggravating to be Google, because as smart as they are, the entire world is engaged in an unending and ruthless quest to game their results for personal gain.