The problem is that its ridiculously grindy for not being able to do much to grind. Its way too much of a chore for minimal returns. It ends up being too much work rather than fun. We're not all basement dwellers.
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.