I am struggling to see how this approach would be beneficial outside of large organizations with massive web apps. For most apps, the benefits do not seem to outweigh the drawbacks of having (1) another dependency, (2) another piece of software (node) to install, update, and maintain, (3) another set of code base, (4) an increase in latency, and (5) all the added complexity to troubleshooting, debug, document, etc...