Yes because 9 th uses unit size limit counts. So to get a basic unit to calculate correctly. Add any unit into the builder, now select the champion upgrade, then reduce the unit count by one model, you will then find the points are correct.
Again to simplify this think of it ad it is adding one model to the total model count for the unit. And size matters in 9th, so to make the rules work for unit count limits this was the only way.
