Cows care about Netflix gaming the same way they care about the Switch... When they can use it against Xbox, that's it.
And there is no way Netflix can afford to not charge extra for a competitive service for long. They'll start off free for a while to get people interested. But I bet they'll start adding tiers of gaming service. And if you want something half decent you will be paying more.
And before cows celebrate this, they need to realise, this will probably bury PSNow before it causes significant problems for Gamepass. This was EXACTLY why MS was buying developers and they saw it before we did.