I have to completely disagree. While I'm not her biggest fan (I loathe Seinfeld and Veep was fun but Selina was far from my favorite character), I really enjoyed Julia Louis-Dreyfus' performance both in the post-credits scene and in The Falcon and the Winter Soldier.
As for not buying her as a "dark, ruthless, or formidable anti-Fury," I would say you've fallen into the classic Doctor-esque trap of underestimating the mad eccentric who is fully capable of handling themselves. I imagine this version of Valentina will be the same and that the comedic effect she displays is just a front. Besides, we've barely seen her and only in the context of recruiting people. We haven't even seen her in action yet.
I also despise Nirvana and I, too, loved that scene. Hell, I didn't realize it was even "Smells Like Teen Spirit" until I saw the credits, but at least I recognized that the song was a cover. I guess I was too busy experiencing the sequence instead of focusing on the song.
Yup, I loved that callback. I broke out in a big grin when I heard her say that. Another huge ego tricked into spilling the beans.![]()
It might very well be a front, but it's not one I find that interesting to look at.