The people that prefer black crush and overblown whites are probably the same people who use Vivid/Dynamic/Store/Torch mode on their TVs. And the people who like the sharpen filter are probably the same people who have their TV's sharpness setting set to 100 with Edge-enhancement on. I calibrate displays and I will take proper black/white levels, gamma WITHOUT any sharpening any day. Sharpening adds to much ringing and aliasing... it looks terrible IMO.
But even if you properly calibrate your tv, a lot of shows and movies will have intentionally overblown whites or crushed blacks, or intense colour saturation. It's not impossible that many people enjoy that look.