Let's not allow that pesky thing called "facts" to get in the way...
He just turned 39 in September, and the year he struggled was due to a knee injury he was working through that required surgery after that season, and they also had a lot of snapper, holder, and protection issues that year, leading to several blocks and/or poor kicks.
He redeemed himself last year once they got that snap and hold operation corrected, and he was healthy.