I hardly think the Office of the Director, Operational Test & Evaluation counts as an "anti-fanboy". And their reviews of F-35 progress of been the bureaucratic equivalent of damning.

Full report here: https://www.dote.osd.mil/pub/reports/FY2018/pdf/dod/2018f35j...

Article summarizing it here: https://www.flightglobal.com/news/articles/dote-delivers-ano...