The carousel is only for news/trending type searches. The fact that we're all to just pretend like everything people search for is news/trending is exactly the sort of nonsense that makes discussing AMP futile on here.
AMP was designed with news publishers in mind. So we're just arguing in circles if you're saying that AMP isn't a problem because it only affects news searches, when AMP was specifically designed for use by news publishers.
If you aren't a news publisher that's all very well and good for you, but that doesn't mean AMP has a huge effect on how people receive their news, and that it isn't worth talking about that.