This is the link for an article discussing the game design behind Classic WOW versus "Modern WOW".
Link: https://www.thegamersage.com/post/wo...esign-analysis
It is a long article, which makes many references to game designers, some famous players, and many other writers of articles on important gaming sites, and it has a more academic approach than just an opinative posting.
This thread is not to start a "version war", but to maybe open the discussion about what makes people feel it is so different to play Classic then BFA.