Perhaps soft skills are too squishy and/or broad of a term to be useful then. It seems like these discussions always go "maybe you, as the developer, just need to learn how to do soft skills properly?" in response to business types exhibiting an undesirable behavior. Sure, smooth talking and playing into someones personality might be more successful (albeit with a lot more hot air), but all of you are supposed to be working towards a goal. If someone gets hung up because you weren't smooth enough, I would think they're a bad faith actor who doesn't actually want to get something done.

Remember, technical workers, you must grind all you soft skills in addition to the technical ones, so that you can successfully interact with those people hired exclusively to use their soft skills.