I've noticed this, too.  And for what many/most consider to be "reasonable accurate road alignment data" (based on satellite / aerial photos), the road is fairly accurately portrayed in OSM.

It may be that CPAD data has yet to "catch up."  (See our wiki California/Using CPAD data).  I've seen this before, where sometimes OSM goes first, sometimes CPAD goes first, and then (this can take years, but it does happen), they end up "agreeing with each other."

I say, let's keep an eye on this, along with if / whether CPAD updates their data of Wilder around here.