Think we're mixing up two things here: Google monopolizes the Web as a runtime with constant forward motion on the standards; no browser vendor can keep up, this is true.

However web dev practice has been driven by Facebook and its quasi-functional programming advocates for at least 5 years now (Redux/React). There's a whole generation of Web Devs that don't know that DOM Event handlers can be objects that bear the handleEvent interface because React prohibits that application for example, but that's a whole world of memory efficient async handling rather than generating throwaway functions for ever little thing