Ya, that was kind of rude... uncalled for as well, pretty much a useless comment. Perhaps the customer wanted this exact launcher and it was his specs. Anyways, who are you to judge what people want or like. Considering you only have 1 cannon posted and that wasn't anything 'special' either, so it's kind of hard to criticize others.
Not every cannon has to be 'revolutionary'. It is what it is, and that's a simple, very clean looking cannon. It's hard to make cannons this clean looking, so that's something to be said right there. So either try to make a positive comment or at least one that will be considered as constructive... not just oh, who would buy that?