Earlier quoted context omitted.
Maybe this is just clickbait? Jekyll is in a fine state for an extremely mature project. It would be extremely souring to me if Jekyll decided to add webpack and other javascript dependencies with a newer version. One of the things I like about Jekyll is that it's a STATIC site generator that doesn't try to do everything. Some sites I want to be dead simple, and that's what you get with Jekyll. If I want more complex…
Is Hugo built with Ruby? Is Gatsby? Why are we saying that someone can only use the biggest Ruby-based SSG if they want something incredibly simple that will never change, otherwise they need to look somewhere else. Rails has never had that limited value prop for example.
If I want an SSG, I want an engine that takes a relatively simplistic text markup format, like Markdown or Org, and create a series of HTML documents from it. Why would the technology that does the gruntwork matter to me as an user?
Also, with Jekyll's plugin structure, what is an example of a functionality that cannot be achieved in Jekyll, but can in another non-Ruby SSG?