You misunderstand. He's saying we have lives with responsibilities - add in the grind/time requirement of this game that we *want* to play and the point of fun flies out the window when it takes us 2 months to make progress.
It also wasn't something you sat and played for a set while like this is. You'd train for a while, then "set it and forget it" apart from the cleaning \ feeding. This is a very different beast.
This game IS very grindy, and that is coming from someone who adores DW1 and played it guideless for tens if not hundreds of hours, lol.