This narrative isn't true when you go season by season.
11/12 was really the only season when it was true, and his game load was much heavier early in the year when he had poor stats, and later in the year he had a lesser load and better stats. Season 10/11 to an extent, but going from Colorado to Ottawa had a big influence on that, and then the lockout year skews it. Seasons 10/11 and 12/13, really skew his overall splits.
In every other season, there is not a clear correlation.
You have no idea what you are talking about.
11/12 the "lesser load" was because he missed a month after slicing his hand while cutting chicken. From Dec20 to Feb22 (last game before injury) he played started 28 of 29 games while posting a .933 sv% in that time. From Jan1 to the end of the season, Anderson had a.931 sv%. for the whole season he had a .914sv%
12/13 Anderson started 15 of 18 games before suffering a knee injury, in that time he posted a .952sv%. he returned an played 9 of the final 11 with a .917 sv%. He finished the year with a .941 sv%
13/14 Anderson started 28 of 38 from Dec1 to March8 before getting a shot off the collarbone from Weber and missing the next 3 weeks. From dec 1 to the end of the season he had a .918 sv%. for the whole season he had .911 sv%
14-15 Anderson started 31 of the first 45 games before suffering an injury to his blocker hand. In that time he posted a .927 sv%. He played 4 more games and finished the year with a .923 sv%
15-16 Anderson started 43 of 52 from Nov1 to Feb 27 games and posted a .919 sv% before suffering a knee injury. he finished the year with a .916 sv%
16-17 Anderson started 19 of 26 games to start the season posting a .924 sv% before leaving the because of family issues. Anderson returned and started 21 of the final 29 games and posted a .929sv%. he finished the year with a .926 sv%
I understand how this comes across as cherry picking put thats not my purpose. Anderson has always had a fairly heavy workload, and plays in 70% (if not more) of the games he is available. Anderson has had some poor starts to a season and my intention is not to dismiss that fact. My point is that Anderson does not perform worse as the season progresses or when he plays a heavy workload, those are lazy conclusions.