I see clipping as a fashion statement first. Then people come up with excuses why its better.
That's a pretty outrageous statement. I could care less about the so called fashion statement, I do care about the time it takes to groom and the time it takes to cool out.
I blanket clipped both my horses last winter, and will do so again this winter. It DOES keep them from overheating as quickly and reduces the time to groom and cool out. I also body clip my 10H pony; he doensn't shed out completely until May, and the hot early spring days make him miserable, so I do it for his comfort.
If clipping did not have very real, substantial benefit, I wouldn't do it. One, it's expensive, with a set of blades running about $50; two, it's time consuming, and three, it's a filthy job that's tough on my knees and back.
If I wanted to stoop to your level in agressively stating my opinion, I could say people who are too lazy, cheap or unskilled to clip make excuses not to. However, I do think it's a matter of what works for you, given the individual horse, riding schedule, climate and personal preference. If you chose not to clip, that's fine, but there's no reason to be diagreeable and insulting about it.