This relates to why a college instructor I know would stop reading submissions if they went beyond the word count limit. The true challenge wasn't showing what you know; rather, it was showing you could carefully select from the near-infinite knowledge space and concisely to respond to the prompt
This is not a shitpost, I'm serious. Adding things is so easy that any computer can do it. Determining whether it improves the whole (and leaving the whole intact when removing the excess) is purely human, because it requires a point of view.