Shopify/Squarespace promote selling, as in ecommerce availability. I know not every business requires ecommerce functionality, but many do, even if it's to supplement brick and mortar income. I wonder how many people will look into this, only to find that ecommerce isn't an option on the wp.com hosted platform? Seems a little misleading...

https://en.blog.wordpress.com/2014/02/25/wordpress-business-ecommerce/