When listening to a band, your impression comes from the combined performances of the players. However, when playing in a band, or just with one or two friends, it is tempting to listen to your instrument only. Clearly it is better to have the same perspective of the band as your audience, i.e. to hear the whole sound and not just your own. Better harmonica listening skills will help develop this perspective and will improve your playing.
Most of will have seen bands where one player seems not to fit in. While this "odd player out" may be technically skilled, the chances are that they are focused on their sound only, and are not listening to the other players. This is a bad habit, particularly for a harmonica player. Here I