Fair point, that makes sense. Im not so sure that m+ overall helps the game in the long run though. As you said, it devalues the whole normal/hc raiding scene, well atleast normal.
I totally agree with having forms of progressions that ends instead of a everlasting treadmill. We are going into a new xpac with m+ and the overall sentiment towards this content went down in BfA. It was very welcomed in Legion cause it was new. Then in BfA it was more of the same and people started doing bare minimum, got boosted or left it alone.