Drop escape valve for possible unknown error issue

[MichaelChirico]

Closes #2475. Enough time has passed that we should have all edge cases covered by now.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.24%. Comparing base (823728b) to head (26a5a72).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2989      +/-   ##
==========================================
- Coverage   99.24%   99.24%   -0.01%     
==========================================
  Files         128      128              
  Lines        7262     7261       -1     
==========================================
- Hits         7207     7206       -1     
  Misses         55       55              

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