Rules often have unintended consequences. But I suspect that some people knew this was going to happen, or have noticed it happening over the last twelve years. And I wonder what about the rule-making process made it so that those voices weren't listened to.
https://newrepublic.com/article/180044/epa-small-cars-sedan-suvs
@JoshGrams @shauna (Not infrequently, the people issuing the warnings are bullied away by a small subset of the community, no moderation on this behaviour happens, and so they are also effectively shut out and no longer heard)