I was having trouble articulating my thoughts on this article but I think you nailed it.
I don't think mindfulness and mind-wandering are inconsistent with one another. In fact as you pointed out, a key tenet of mindfulness is occasionally allowing our thoughts to wander, but knowing what is happening, and naming said thoughts.
In fact, mind-wandering paired with mindfulness can be very powerful. We can allow our subconscious to come out of the shadows, all the while noticing where it is going. The two don't have to be separated, they can go hand-in-hand.
I don't think mindfulness and mind-wandering are inconsistent with one another. In fact as you pointed out, a key tenet of mindfulness is occasionally allowing our thoughts to wander, but knowing what is happening, and naming said thoughts.
In fact, mind-wandering paired with mindfulness can be very powerful. We can allow our subconscious to come out of the shadows, all the while noticing where it is going. The two don't have to be separated, they can go hand-in-hand.