This is 100% incorrect. If a developer submits a PR that works and if fast, but cannot be understood by the rest of the team, it can, should, and will be rejected.
80% of software's lifetime is spent in maintenance. That clever hack or ugly patch might work today, but you're going to hate yourself for it in a month.
There are exceptions, but they're by far the minority case and should be clearly marked as "deep magic".
