Do not worry, RAS007 has always been negative on M-Sport side. Probably he was fired from there because he did not met their standards. He only posts when he has somethoing bad to say about them, check his posts if you do not belive me.
I think they were doing OK. Old car was slow and some unluck as well, new car was fast but a bit unreliable and some very good results were not achieved because of this, but that is normal if you are not VW and you do not have billions of budget.