The absolute best you can hope for is that viewers will remember three key points. Irrelevant content will make it more difficult to remember even those three. Less is More. For the writer, it becomes a holy war to restrict the content, and by so doing, empowering the script. Less is more.
Style concerns the look and feel of the video.
Many corporate production styles are patterned after broadcast television styles such as news documentaries, video magazines, MTV, docudramas, commercials, and infomercials. I encounter is print-oriented writing. Give it Punch. Complex sentences full of commas and clauses have no place in a script. Short declarative sentences, phrases, and even one-word statements give punch to the narration.