This change has the potential to make development more focused on features (not technical details), more agile and welcoming to designers, casual programmers, and volunteers. It would determine how MediaWiki is developed and how these wikis look and interact with the users in the new decade or more.
Vue and React are very similar in features and backgrounds. The small differences, however, reveal a conceptual difference that distinguishes projects that benefit most from one or the other.
See the essay researching these differences and coming up with a conclusion based on the developer experience of each framework.