It looks like all the ways have a type of ‘Minor/unclassified road’ which is a type that is brought into Citystrides (CS). The reason some of the sections are in CS and others are not is some of the sections have a name added to them (Greece Ridge Center Drive). When a way doesn’t have a name, it isn’t imported into CS.
In my opinion, those ways should be type=service road. Having them as minor/unclassified road isn’t wrong; just not real descriptive. As to them having a name, that depends if your city has signage up. If they are unsafe for pedestrians, you could set them all to ‘foot access’=no and they would be removed the next time your city is updated.
Bonus: A bit more explaining about what OSM data is brought into Citystrides About the Node, Street, and City Data
Reference street: Greece Ridge Center Drive - CityStrides & one of the way sections Way History: Greece Ridge Center Drive (522327642) | OpenStreetMap (it’s had a name since it was created in Sept 2017)