As an engineer, that slide looks completely reasonable to me. Its purpose was to communicate technical info, which it did adequately. Keep in mind that the subject matter is highly technical, given that we're literally talking about the Space Shuttle, and more than a high school level of reading comprehension is heavily implied. If the NASA personnel weren't competent enough to review technical data without a pithy summary, that's on them.
"That's on them" is not acceptable for an engineer when lives are on the line. Part of your job is making people understand what they need to understand. If their lack of understanding means people die, then you need to do your job and figure out how to communicate effectively to the audience you have, not the audience you want.
There’s a famous speech someone related from their civil engineering professor, where the professor basically said, if I pass you in this class I am effectively giving you a license to kill. So some of you will not be passing.