I guess our version of acceptable is different...that's all. I wouldn't put anything off the shelf from Alpine, Pioneer, Sony, etc in my truck.
The reason certain things get a bad rap is people having no idea what they're doing when the install and tune...if they tune at all. I could show you JL based systems that would blow your mind and definitely change your opinion. Their ZR midbasses are some of the best you can get...and the W6 and W7 subs are very, very good. There's better of course...but they are way above average and there's a reason they're pricey. The bad thing is...if you think JL is pricey you'd flip at what some of the real high end stuff costs.