Superhero movies and TV shows in 2017 rarely have this problem. The Marvel Cinematic Universe is based entirely around the idea of knowing exactly what it wants to be. They've mastered solo superhero movies to the extent that they feel comfortable mixing them all together as ingredients in the big delicious Marvel cake. And I eat this Marvel cake multiple times a year. I stand in line at the movie theater and demand "Oooh, give me a slice that has the Hulk's face on it."
And if these movies are becoming so similar to one another that they're unwatchable, I certainly haven't gotten the memo. Yeah, they have the same vibe, but I'm still thrilled by them. The same cannot be said for the Marvel Netflix series, though. When Daredevil premiered in early 2015, it was refreshing in the same way that you'll probably enjoy a Coke if you have it a little while after a Sprite. The Marvel films were fun, and now I was getting a new flavor of fun, a flavor that was more street-level, gritty, and apparently filled with endless waves of ninjas.
The Marvel Netflix shows display both the best and the worst aspects of the "Darkness and realism make something inherently more important" line of thinking. On one hand, you get things like the deep characterization of Jessica Jones, or the idiosyncrasy of the Kingpin. Can you imagine a weird, intense performance like Vincent D'Onofrio as Kingpin in a giant Marvel movie? I'd like to, but I can't. MCU villains tend to be created out of booming declarations of evil and intense shockwave-y powers. Kingpin, on the other hand, is really sad about his wife and throws huge baby tantrums when he gets the slightest bit ticked off. There's nothing cool or action-figure-ready about him, and I adore him.
You also get invigorating fight scenes that the other movies of the MCU (and most of the superhero genre in general) have yet to top. It's hard-hitting stuff that seems to have been ripped from an Indonesian or South Korean action film. Daredevil and Punisher and Luke Cage are pounding bad guys until they look more lasagna than man. You don't see that a lot in the energy-beam-filled world of the MCU. The fights in the Netflix series have urgency and stakes. The fights in the Avengers films are placeholders until the big world-ending device shuts down or explodes.
However, because their ultimate goal isn't to build these characters up until they're ready to show up in movies, but to provide a definite alternative to the movies, they've boxed themselves in with "realism." Sure, Iron Fist has a magic hand and his show talks about immortality, but the most outrageous foe he can take down is a jacket-wearing guy in a dim alley. The Defenders brings up an immense dragon skeleton, but the climax is based around preventing damage to building foundations. A huge section of Luke Cage deals with anti-Luke-Cage bullets. You have a story about a wonderful man who can't be damaged, and you make the plot about niche ammunition manufacturing?