Shopify doesn't make advantages like branding, brand awareness, marketing, market research, etc available. It simply makes setting up an online store more convenient for people do. Convenience != competitive advantage. You can extend this argument to cloud platforms. AWS, and Azure make setting up and scaling a SaaS easier, but it doesn't give you any secret sauce that you need to succeed, like the ability to know what your customer want.
Most of the Shopify plugins exist to give a store owner an advantage in sales, conversion or marketing. Sure execution counts, external branding counts, but Shopify is a closed platform. You use their plugins and approved apps. And most store owners rely on these plugins to some degree, to help them build brand awareness etc.
Eg: https://apps.shopify.com/browse/sales-and-conversion-optimiz...
Shopify levels the playing field which is great. But if everyone selling Bananas is on the same field, using the same plugins, switching fields could be a great way to differentiate and possibly optimize beyond what Shopify can help you with.
There also are a number of apps who choose not to be in the app store and not give up 20% of their revenue and instead market on their own.
My other purchases are from shopify sites. I trust that what I'm buying is what is advertised far more than I do with Amazon. The influx of crummy knock-off products, poorly made junk, and a lack of quality around product listings on Amazon has completely driven me away from them for things like clothing, shoes, fitness products (equipment, supplements), and anything else that I wouldn't see myself purchasing regularly or that I require a high standard of quality for.
But there's definitely some gems out there!
I would love to see this happen with mattresses actually. Buying a mattress is currently ridiculous. Why do I need a guy in a suit showing me around like I'm buying a car?! What's the difference between these mattress brands that I have never heard of. I'm not loyal, because it's a one time purchase every ten years. The brand I purchased last will probably no longer the exist next time.
My latest eye glasses were purchased at the grocery store optical centre, not a mom and pop shop or specialized brand. Much cheaper that way, and good quality. I wouldn't be surprised to see Amazon take over this category as well. Hasn't Walmart already?
This could mean over time, more Shopify merchants would be selling overlapping product categories (the ones Amazon has not yet gobbled up yet).
Which would mean that as a Shopify merchant, you would competing with other Shopify merchants (not Amazon).
How do you differentiate, when the Shopify platform makes the same set of selling advantages available to everyone?
You leave Shopify ...