Yes, No, Maybe.
S+S, Software + Services, has many flavors and forms depending on who is asking. Most times it is the ability to use both on-premise software (inside the organization) and out-reach services from the Internet.
One of the scenarios where S+S is also relevant is an organization that uses both internal services and also external services in a single business process.
For example, if we want to discharge a patient from a hospital, we can say that the process uses the following services that the hospital is consuming from the Internet: Issue Discharge Report and Check if patient is detained.
The rest of the services will remain in the organization: Supply Medications and Check for Allergies.
If we would have implemented SOA first, we would have the systems already organized as a set of services and it will be easy to move services to the cloud in stages. This is why SOA makes S+S applicable...
S+S is more like a business model that allows you to choose which services will be maintained be a hosting provider in order to reduce costs.