A problem with using Multisite instances as a concept for doing E-commerce is that it takes a really long time to do administration. This can either be solved by making an integration to ERP & PIM systems that feed everything to Woo, but thats not usually the case with WooCommerce adoptors as they need to be fast-paced and not burdened down by a multitude of systems. They just want to click some buttons and make the change everywhere. This makes it possible, but on a datatype by datatype level, which means that for every new datatype we will need to create support for it.
User experience: As a user, when I change the category of a product, It changes across all connected multisites
Benefits: Decrease manual handling time – Keeps administration time down so that client can focus on other things.