I think there should also be a waypoint just above it, marking the US-97/US-97-BR split. In GSV I can see that that split is already signed for the business route. That would also mean that Empire Ave is no longer part of the business route.
There is also an old segment of US-97 From Empire Ave up to the US-20 interchange, but that's been reduced to a NB ramp. It probably doesn't belong in TM at all any more, since it's not part of the main line of US-97, US-97-BR, or US-20. I'm not even sure why they built that ramp, since there's no analog to it in the other direction.