If I remember correctly, they stated the objective direction they wanted to take the game in was mutiplayer coop ARPG gameplay.
Obviously, the genre is not designed as such.
My cynical take is an artificial astroturfing and “fluffing” of data to appear to those within Blizzard that they are making positive progress towards a stated metric of success. This is all internal btw. Nothing to do with fun. It’s just a data point on a spreadsheet.
It’s also the most benign of offenses.