I don't follow — MPG and range have a direct, linear relation. They're also one of the most aerodynamic, low drag coefficient vehicles on the market.
This table on wikipedia[0] puts the Model S and Prius at the same coefficient: 0.24. The Model 3 is a rounding error better, at 0.23. The Model X is a rounding error worse, at 0.25. Another list with helpful pictures[1] shows that literally every other low-drag mass market vehicle has conventional handles[1].
You make good points about the drag coefficients, but I don't know if they're comparable in terms of handles — just because they have similar overall coefficients doesn't mean the handles don't affect drag. It may be the case that the Prius body is slightly more efficient, but the handles bring it back down.
Re: range vs MPG — range anxiety isn't an issue for hybrids, because filling up at a gas station is extremely fast. So having better MPG — which is more a cost metric (and to some extent a badge of feeling good about being eco-friendly) — is less important than having longer range on an EV, because when you exceed an EV's range it's quite a bit more painful than when you exceed a hybrid's range. Technically better MPG means better range assuming tank size is equivalent, but range isn't a number many people care about for hybrids; it usually doesn't appear in marketing, whereas MPG does (and typically without tank size, so range isn't even deducible). For EVs range is one of the headline numbers, whereas MPGe typically doesn't appear in marketing.
Fuel is cheap. Nobody cares about that extra 0.2 mpg.
For electric it's an amplified effect, because a slightly lower drag coefficient means less energy use per mile, which means you can have a smaller battery, which in turn means lighter, which is again less energy per mile.