Hinata wasn't anything like Kushina in this episode, lol. Kushina's gag component was her always being wildly mad and over the top while still being a caring person. It made her less scary as a result, just more funny when it happened. Hinata is totally the flip. Her primary mode is mother but so when she gets mad, it's kind of scary, especially when you see her Byakugan veins pulsing and she gives that cold stare, lol. It's even scarier when you consider that this was the first time she's ever gotten mad like this even including when she was younger, at least as far as I can remember.
Anyway, that Hinata/Naruto moment was pretty great. It's stuff like this that makes this show enjoyable. It's also why I enjoyed the Naruto filler though those were a lot more shoddy.