Yes really. Can you elaborate on "far ahead" on device support compared to the TWC TV, HBO Go, and MLB.TV? Being able to control a DVR (like in the TWC TV app) or watching live television and easily perusing a guide and switching between streams (like in the TWC TV app or the MLB.TV app) are pluses over Netflix's offering. I have watched live streaming sports without issue over ESPN's offerings or individual league offerings and I find they work well and provide a lot of alternative content, things which Netflix isn't even in the business of having much less having the features for.
I don't think Netflix would have any special insight as to streaming live action such as sports. Streaming and caching content from a movie or TV episode enables additional options compared to live content.
Oh really? Netflix is far ahead of the competition when it comes to device support. And the streaming technology plays a lot bigger role than you might imagine, especially when it comes to live content. Contrary to popular belief, this is not a solved problem. Like I mentioned above in another comment, just try watching a streaming NBA game.