I don't know that it's politicized. I suspect that many organizations (public and private) have been degraded by affirmative action lowering standards. Add to that the dependence on drugs (legal and illegal) by a high percentage of the population. One can't help but wonder if competence is going to become ever more of an issue as older workers disappear from the work force.
The Philly investigation caused me to wonder. And I am greatly concerned. If anyone in Congress gives a damn, they need to issue an ultimatum: Trump gets his guy, or NTSB goes under the scope.