In short, kickers are getting better than they ever have been. It coincides with an NFL rule change that has made it easier than ever to get into field goal range. It also coincides with the widespread usage of two-high defenses, which has deflated passing outputs league-wide through two weeks and has forced more and more field goal opportunities.
Call me crazy but making statistical arguments as to overreaching shifts and trends League wide after 2 weeks seems rather silly.