If you're referring to its use in sentences like "The X programming language is a powerful, succinct, elegant tool for doing Y and Z.", well, that's advertisement/propaganda. If you listen to all of them, all languages are powerful, all food is delicious, all cars are either family-friendly or cool/fast, all countries are righteous and heroic in a world of traitors and inhuman dictators, all religions are right, etc.
Like half of the other examples, it's not completely false but not even close to the whole truth - language A works well for tasks like X, language B works better for tasks like Y, both such at what the other is good at. (Sometimes, there are languages that are completely and utterly useless for practical purposes and only created and studied for comedy. These are esoteric languages and nobody writes serious propaganda for them.)