If places like Paramount+ can figure it out, Netflix, given their 10+ year head start on streaming and strong engineering culture, should also have been able to. And if you don't like my example, literally every other streaming service has streamed live sports without issue. YT TV, Hulu, Paramount+, Amazon Prime, Peacock, even Apple TV streams live sports.
It may be "new" to them, but they should have been ready.