I'd say that this claim is not unlikely. Facebook has inflated video views since years. https://techcrunch.com/2016/09/22/facebook-miscalculation-significantly

I'd say that this claim is not unlikely. Facebook has inflated video views since years. https://techcrunch.com/2016/09/22/facebook-miscalculation-significantly-inflated-average-video-view-times-for-years/ https://techcrunch.com/2016/09/22/facebook-miscalculation-si... https://www.theverge.com/2018/10/17/17989712/facebook-inaccurate-video-metrics-inflation-lawsuit https://www.theverge.com/2018/10/17/17989712/facebook-inaccu...