I think that Magento is doing extremely well in terms of search engine popularity. If we compare it with peers (in relative popularity, 100 max), Google trends returns the next number.

eCommerce is just one (though probably the most popular) keyword for Internet commerce. If we add the closest synonym “e-commerce” together they beat Magento;

• Magento – 98
• Woocommerce – 46
• Shopify – 39
• Hybris -10