Ok I get that, but with and without the context what he says is still factually wrong. He was a starter from the beginning. Or does he literally mean because he didn't play round 1 in Serie A? Poor thing.
The other thing is, there will be occasions where a coach who has Bonucci and Chiellini in the squad will still play them together on occasion. De Ligt won't often find himself in a squad with an elite veteran pairing. In fact it'll never happen again in his career.