Some insights fields were deprecated in API Version 19. Running the tap gave me this error:

  Status:  400
  Response:
    {
      "error": {
        "message": "(#100) age_targeting, gender_targeting, labels, location, estimated_ad_recall_rate_lower_bound, estimated_ad_recall_rate_upper_bound, estimated_ad_recallers_lower_bound, estimated_ad_recallers_upper_bound are not valid for fields param after V19.0",
        "type": "OAuthException",
        "code": 100,
        "fbtrace_id": "****"
      }
    }

By adding these fields to the EXCLUDED_FIELDS list I no longer received the error and the tap could complete successfully.

In order to prevent somehow breaking previous integrations, it may be worthwhile to check these specific fields against the configured api_version. I figured that would be overkill to resolve the error, but I'd be happy to contribute that if needed.