I disagree. I feel there are certain "styles" of emoji use. I don't know if I can explain it well. for example ive worked with people who are really good communicators who use things like sunglasses emoji or muscle emoji to make you actually feel good and keep concise clear communication. But people who make some big long official announcement then pepper it with random emojis to make it more "fun" can be extremely offputting. There are appropriate times to put them but you gotta anticipate how your audience is likely to feel and use them to show you're communicating in good faith, and if you're communicating in bad faith, just don't use them at all, we can all tell.

Also the choice and timing of emojis can be good or bad. Honestly I think it literally comes down to a culture difference between hr types and engineers