I saw the movie with my kids and they really enjoyed, but I completely agree with you on all points. I stay up with all MCU releases because I enjoy them, but Captain Marvel has the same problem DC has with Superman: they're virtually invincible. There's no real physical struggle and therefore the fights are just eye candy with nothing really on the line.

So now the writers have to figure out how to make them vulnerable and it's always personal moral conflict or relationship challenges. Those can work if the writing is actually deep and developed, but not when the core expectation from audience is action and explosions. There's just not the time to develop the story.