The licensing for the tracking calculation tool should be separated from the other Utility Network tools. Tracking tools are tools that work in both the portal and Field Maps, so there is no reason why it wouldn't also work in ArcGIS Pro under a Basic license. This is especially useful when working on an offline computer with data stored in a local FGDB. It is not appropriate to think about upgrading a license to a standard level just for this operation.
In addition, in Geometric Network it was possible to do a tracking calculation with a Basic license.