It makes perfect sense if you don't personally own or use Windows. I don't pay Microsoft again to play TitanFall just because their servers are hosted on Azure.
I understand we all probably use tools everyday that can be attributed to these projects and I don't mean to imply that you shouldn't give them money. Just that the Netflix/WhatsApp comments seem a little disingenuous. That shouldn't be in the "reasons you need BSD", those are just reasons Neflix and WhatsApp need BSD.