I don't see how that's the case. Misinformation thrives in low-info, high-throughput environments. You can't check everything you read, and Twitter will default

I don't see how that's the case. Misinformation thrives in low-info, high-throughput environments. You can't check everything you read, and Twitter will default to showing you all of the misinfo points in series but make you hunt for rebuttals. So most people don't see them. They see the zinger, they go "yeah that feels right", and before you know it they've incorporated it into their worldview. Point-by-point rebuttals are extremely ineffective, because by the time you move on to the next point, they've already duct-taped the previous one back together. Nobody is keeping score, nobody goes "aha, I counted and he rebutted 7/9 of your points, so I don't believe you anymore!"