I actually prefer stronger typing and Typescript solves that for me for Javascript+Node.js
The bigger reason I see for sticking with Node.js for web development is being able to use Javascript for both server and client code.
Newer Javascript frameworks and templating libraries such as dust.js, Ractive.js, React.js can render both on server side and client side so on the initial requst the server can send a fully rendered page for SEO and performance, and then client side Javascript can dynamically update the page using the same code/templates.
The bigger reason I see for sticking with Node.js for web development is being able to use Javascript for both server and client code.
Newer Javascript frameworks and templating libraries such as dust.js, Ractive.js, React.js can render both on server side and client side so on the initial requst the server can send a fully rendered page for SEO and performance, and then client side Javascript can dynamically update the page using the same code/templates.