Certainly not. I'm just saying that sales is probably a bigger factor than you think. I'm going to assume that you're an engineer. Tech alone doesn't make a business successful. More so than not it makes a business fail. I agree that the statement "Everything about a startup is sales" is exaggerated. Although, I will say that good sales outweighs good tech the majority of the time. It baffles me that people don't recognize that.
I was replying to his condescending assumption, “ I'm going to assume that you're an engineer”
Sales is important, it’s not the only thing.
BTW, most startups are miny cults where employees are suckered into taking a pay cut to “change the world with disruptive blah blah blah”, and as you can see from the author of this post, the founders are just trying to line their pockets.