With a multiple selection (in Surveyor 2.0 only) only the properties of the last selected object are shown in the Info palette. Opening the context menu of a multi-selection and selecting the Edit Properties option will only edit the properties of the last selected object (whose name is shown in the Info palette).
I have never bothered naming spline objects and only name other objects when it is necessary for other operations - e.g. a name that will be displayed on a sign, a destination for a driver command, etc.
This has never been an issue that has been raised before, as far as I know, in these forums.