I always thought it's the other way around and Netflix was in a "if life gives you lemons" situation. The content producers in 2010 (or 2005 .. don't know) didn't want to bother with digital, so they just gave it all to Netflix and that's that. Then when time came to renegotiate the existing contracts (let's say in 2015) the situation had changed: Everyone and their dog now knew that digital was great, so half of them didn't want to give Netflix anything anymore. They wanted to be a competitor and Netflix had zero leverage (e.g. Disney), the other half now had a far better understanding of the value of their digital catalogue plus was able to shop around "so, you don't want to pay us our prices? Let us talk with Amazon over here ..".
At some point Netflix had to find a way out of that situation and while "we produce our own content" may have a higher initial cost and is not what the existing audience wanted in the long term it frees Netflix from their dependency on competitors.