I'd say Walmart needs a high-load solution, as does paypal and LinkedIn who are both using node. Static vs dynamic languages both have merits and are almost completely subjective, but I'd say it comes down to team quality. Don't use the sharp tools if you have undiciplined or inexperienced devs who will fail to design correctly and write tests. Walmart has Eran Hammer, so I don't think they need to worry about that.
I meant the majority of enterprises, not stand out mega-stars such as Walmart who can afford to have an own lab full of experts. PayPal and LinkedIn are web technology companies relying on high-load public-facing web-sites. All three could afford to even build their own tech from scratch. Let's talk about the other 95% of enterprise - do they typically have high-load public websites?
They are going to have high load services in any case. Check "Internet of things" and "systems of engagement". Your traditional enterprise application is probably not the future of enterprise. It will continue to exist, but its importance will keep getting down.
