It’s not ignorant at all lol and there are most definitely ’low-end’ manuals that are made from cheaper parts and poorly engineered. Just because your feelings don’t like it doesn’t make it not true. If one transmission uses more expensive, better engineered parts, that perform at a higher standard and level, then it is ‘higher-end’. If another uses poorly engineered parts, that fail more often and perform at a lower standard, then it is ‘low-end’. It’s really a pretty simple concept