Tulpas have their use too, although they are not recommended for folks who lack the skillset and experience to create and use Tulpas. I have a few Tulpas I have created, one is nearly 17 years old now, and if you know what you are doing, they serve their purpose. There are ways to bind the Tulpas during creation through talismans and energies - like Vajravarahi is a guardian deity who is used to bind the Tulpa in case such emanations go rogue. Again, one needs to know what they are doing or there is trouble. Tulpas go awry when they are inhabited by unwelcome entities, and they trace back to the creator whose emanation the Tulpa is. Everything is an emanation, those embodying wisdom of enlightened beings are called Tulku, others Tulpa. The first misnomer of Tulpas as depictions of monstrosity came from Alexandra David-Neel, with her monotheistic background of God vs Satan, who popularized it the spiritualist circles with only a passing knowledge of Tantric Buddhism, and her misrepresentation continues to this day. The concept of Tulpas and Tulkus cannot be understood well, without knowing Nirmanakaya concept of Buddhism. Cosmos is not as simple as Angels and Demons 
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Dream’s servitors are 100% safe and cut the steep skillset/practice needed to create servitor-like beings, while assuring safety. The Fae servitors are probably the most advanced one ever made available to public in such a simple way…