You can call it what you want but it's definitely Cluster A.
If you want to talk about specific criteria, from the ICD-10, I fear it in the long term would lead to:
1. Almost always choosing solitary activities.
2. An excessive preoccupation with fantasy and introspection.
3. Neither the desire nor existence of any close friends or confiding relationships (or only one).
That is, the steps of the schizoid personality is:
1. Loneliness
2. Escapism in the form of internal fantasy
3. Choosing to be alone, because the internal fantasy is judged to be enough
"Dissociation" means to feel separate from your own physical body and actions. This (tulpa-summoning) is "externalization," which is to see your own internal thoughts and states as external. This is what people who hallucinate (or project, like paranoids) do. The etymology of schizophrenia is literally "split-mind."