This happens but stating that the Jetbrains changes fall under this category is baseless speculation.
> This part seems to be missing in the calculation
What makes you say that?
I don't think anyone commenting here is in any doubt that needless/bad UI changes do happen in products. Noone's debating that general broad point. The thesis put forward by the article is that Jetbrains' changes specifically are an example of this trend. And it's very clear that the article is so lazily researched that none of the points listed do anything to support that specific thesis.