The last sentence is a pure assumption. Perhaps they took it off because it was not financially feasible to maintain different realms with different design philosophy? Anyway, Blizzard has demonstrated that they won't always do what player base desires. People, since Cataclysm, have been complaining about lack of content, especially towards xpack ends, and Blizzard repeatedly ignored that. This is a proof stating that they do not always took things off because they are not popular, hence your assumption being just an assumption and highly likely to be wrong.
You have a habit of interpreting events/data to confirm your own perspective. If we are to go in statistics, using this forum alone will yield problematic conclusion. For one, it is a limited demographic and this forum has a certain thread, that is being pro-Blizzard and con-change in most aspects of the game.
If calling out noises such as "this thread again?" as not being interested in a real discussion or wanting an echo chamber, I suggest you to go back to reconsider your comprehension skills. I will not further derail this thread with this. If you disagree, I respect that and you are free to elaborate, otherwise, do not noise this thread. If this is a duplicate, I am sure moderation team will handle that.
I do not want an echo chamber, that's for sure and people are free to disagree with me.
There is no assumption or prediction. The graphs until Blizzard decided to stop giving sub numbers are public. The trend is clear, it's going down.
Legion is a good step forward, but certain "convenience" problems remain to be a problem. Considering there are several people stated that they'd prefer harder and more meaningful leveling experience, I am not alone.