The MCU’s “writing” is like the “writing” of a porno or an 80s video game. It’s expected to be there, but it’s not that important. It’s weak and barely existent because story isn’t the point. The point is to push your buttons for a bit, and the story’s only there because people aren’t yet ready to just watch two hour long SFX sequences like they are now ready to just play games and watch people having sex.
Star Wars, for what it’s worth, is at least supposed to be about the story. The overarching story may now be a train wreck, but the only reason the MCU isn’t a train wreck is because there’s nothing in the train to wreck it.
As someone who has watched all the MCU and ended up loving the majority of it? I’d say that’s being a little harsh but then again, I really dislike when people jump to pointing at the MCU as this pillar for perfect movie series when it just isn’t.