I can only speak for myself: I only think it's weird that the interviews were given when the site was free. If the interviewees are fine with it, and obviously for the coming interviews, I wish him luck. I personally won't subscribe, but then entrepreneurs also aren't entitled to me having to buy their product.
25$ not being much: if you are not Ramen profitable, it is (It's 5 days of food). To put it in perspective: 25$ is the price of my internet flatrate or a book like "Founders At Work". At the moment I don't buy every book I fancy.
Not saying the interviews are not worth 25$ (don't know), but it is not a "sense of entitlement" to simply have other priorities for spending 25$.