Minimalism in e-commerce can either be done very well or very badly. Some seem to think minimalism is just having as less as possible on a page when really it shouldn't affect function at all. Minimalism and function should work together.
Having a minimal e-commerce site can easily help your customers understand products easily and help them find what they need. It should give them just as much information as they need, without overdoing it. Giving too much information can actually confuse a customer and could even put them off because they don't understand half the stuff written down.