^I doubt they'd be ashamed to admit it. If you read the Mike Piller's draft book, he ends it describing precisely the kind of writing that was used in ST11, you think up several memorable action set pieces, and string them together with a plot.
I don't think there's anything particularly wrong about writing something that way, so long as you put actual effort into the plot, and if a set-piece conflicts with the plot, you modify or eliminate it. Story must trump all, but it doesn't matter where you start writing it.
The problem is when you don't want to let go of "cool" set pieces that just don't fit together. And then you let your characters make stupid decisions and let other ridiculous stuff happen, just so that you can have all your stuff happen in one story.