First, ES6 brings a lot of enhancements to JS. However, it also makes JS even more complex and unwieldy because now you have all of these new and old language features co-existing.
If you use a tool like ESLint, you can limit yourself to a subset of the whole ES6 standard that I think is a decent programming language.
There's also other ways to go at it, by using a language that compiles to JS like TypeScript, however maybe that would be considered cheating in the context of this argument.
There are ways to work around this...
First, ES6 brings a lot of enhancements to JS. However, it also makes JS even more complex and unwieldy because now you have all of these new and old language features co-existing.
If you use a tool like ESLint, you can limit yourself to a subset of the whole ES6 standard that I think is a decent programming language.
There's also other ways to go at it, by using a language that compiles to JS like TypeScript, however maybe that would be considered cheating in the context of this argument.