If you pirate, you get high quality, ad-free video files that you can play on any device, anywhere, any time, forever. You can get any video resoultion and audio quality you want, and many (toggleable) subtitles which can be extended with third-party subtitles in post for languages the creators didn't bother to translate to. Every movie and TV show ever made is available through piracy, too. All for the low price of $0.
Or you can pay >$100/year to get stupid bullshit like this. It won't work on most devices, requires proprietary software to play back, can't be used offline in most cases, has questionable audio and video quality, is locked to specific regions, and will vanish when Netflix can't renew the contract.