That is odd but it may be that semantics do matter. I can light my KK but if the fire doesn't take properly I can come back in 10-20 minutes to a cold KK. When you say half the charcoal basket was lit, was it actually burning away and then just stopped?
Yes, getting the quality of cook that you are looking for is indeed a big part of what matters but we do worry about other stuff too - we wouldn't own a KK if we didn't care about getting good quality and service. If my KK was using too much lump or didn't hold a steady temperature I would worry. I don't worry about uneven burn and actually like the fact that I can light the charcoal in one spot, get to the temp that I want, snuff the fire out and come back the next day to a largely unburnt basket.