maybe because coilovers were designed for the track and to be adjustable, not to tuck the tires into the fender for a "stance" fad that only half of the car enthusiasts actually thinks look good.

fucking dumbass ricer mentality of "only what [u]I[/i] think looks good is what
actually looks good:
I personally think cars look better with a little bit of wheel gap, maybe a cm or 2 of black space between the top of the tire and the lower edge of the top of the wheel arch.