This Cory "Old age* meme just doesn't fly in my mind...the guy didn't become a starter until 2015-16.
Before he become a starter in 2015-16 he had 129 starts...So he was a starter for only 2 years then began his decline at 29 years old? That **** don't add up.
Logically the injuries are the reason for this sort of decline, rather than being old, which he's really not that old, even if he's above league average in age, or lack of mileage.
A few things I need to correct in your post though, since I'm being fair and I'm definitely not biased here. He became a starter in 2014-2015, not 2015-2016. Technically, he started more games for his team in both 2012-2013 and 2013-2014, but the first year was a lockout shortened season and the second year he only played a little over 40 games. And he was age 30 at his decline, not 29.
His dip in play started on November 17th of 2016, and it started in this very building where we played tonight. Right in Anaheim. Remember, he was really good in the first 1.5 months of 16-17. He was even getting wins at a good rate that season up to that point, which I know you appreciate. That was game 13 of that season. Tonight is the 100th game he's saw some kind of action, including playoff games since that night and he has a .904% since that night over that 100 games. That includes playoffs, that includes tonight's game, that includes his various hot streaks since then, like his 28 game stretch of .923% goaltending last year through December 27th, the 3.5 playoff games, his ,925% month of January 2017 and his .928% month of February 2017. And if all that wasn't bad enough, his 4 AHL games over the last 2 seasons have been around a combined .905% also. His career average before this stretch in 292 games played, playoffs and regular season combined? .925% career. When you have 2 years of goaltending like that, you wind up Ray Emery'ing or Dan Cloutier'ing yourself out of the league.
Was he injured in November of 2016? Who knows, but we do know he was injured in March of 2016, despite coming back for a few games late in the season and looking fine, as well as the first 12 games of 2016-2017, where he was a .929% goalie to start that season through 12 games. There was a chance that maybe he was bouncing back last year (he looked worse on the eye test through December than his save percentage though, but not nearly this bad either. Just average) after one isolated poor year in 16-17, but that hip injury made him completely fall apart. Whatever the case may be, he's completely fallen apart, no matter how he got there.