Make stat metrics opt-in with new flag

[tudddorrr]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.32%. Comparing base (9a1d2b2) to head (3f67bec).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #496   +/-   ##
========================================
  Coverage    99.32%   99.32%           
========================================
  Files          198      198           
  Lines        12946    12948    +2     
  Branches      1156     1158    +2     
========================================
+ Hits         12858    12860    +2     
  Misses          86       86           
  Partials         2        2           

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