I went back to cable last year after years of Netflix/Hulu for my tv needs (there isn't a better option than Comcast for ISP and the Internet + Cable + HBO deal was more or less the same I was paying for Internet + Netflix/Hulu + TiVo), and Prime video has been a pretty adequate replacement for a lot of what I had been using Netflix to watch (which, honestly, is primarily children's programming, so your mileage may vary).
This is long established practice in the publishing business - publications getting exclusive excerpting rights to upcoming big books. Lewis's name can help move some issues of the Times, and the exposure there helps move some books. Lewis also has a long history with the Times magazine, so it's unsurprising to see them get excerpt rights.
Nitpick, C# is an ECMA standard that has a non proprietary implementation (Mono). I realize the best implementation is the CLR provided by Microsoft, but is feasible that should Microsoft abandon C#, others could pick it up.