I think he’s talking about their commitment to quality, and their willingness to take the financial hit associated with that.
(Please forgive my ignorance of the estate in what is to come) As far as I understand it, in a poor vintage, instead of selling their best wine wine as named vineyards/Lieu-Dits it will be declassified and sold as generic Vacqueyras, (at a much reduced price) or even in the worst case CdR.
If it doesn’t hit the standard, they won’t sell it at the most premium possible level, despite it hitting all the geographical and viticultural controls.