Salesforce bought Demandware, which was built on Intershop, and while a dominant force in ecommerce, it's also a stagnant one, sorely lacking on the content front. There have been several attempts to fix this, and none are keeping up with modern alternatives.

The admin for Demandware hasn't changed in years. Woo is nowhere near where SFCC is in terms of functionality, but with this kind of investment, the folks involved on the Automattic side are likely far more personally invested in building out an ecommerce platform around WP, certainly compared to anyone who's hired on to go spelunking in the Demandware codebase.

Look for a hosted, enterprisey take on WooCommerce in a couple of years.