No, I'm sure the number is close to 94-98% of people. Maybe not everyone calling it the most beautiful, but one of the coolest and most epic - that's right. I'm sure: the only people who hate this car are some aggressive Ferrari fanboys (who hate on Countach and any other Lamborghini just because of Ferrari; but stand that Countach alone, and they would at least consider it a cool supercar), the others, IMO, are just vandals, who don't appreciate the art.
And still, the design is very futuristic. If not this car, there will be no Diablo, no Murcielago, no Gallardo, no Aventador, no successor of the Aventador... no Lamborghini at all. This car and Miura made Lamborghini in business.
And not just this epic design! The whole car is just magnificent! The big fire-spitting V12, the interior, the feeling! And unlike modern Lambos, Countach is RWD and has a manual tranny. An ultimate dream car.
As for me, Countach easily comes to top 25 best cars EVER MADE.