We could achieve the same result by simply hiding all wine taster names except the one we want to see from the view. This can be a good, quick solution for creating a one-time, static view.
However, this is generally not recommended because it's not interactive (it's not that easy to switch between different values of the filters), and can also be confusing to someone who is looking at the view for the first time—they could not really tell what the view has been filtered by.