While the exfoliation and smoothing sounds nice in theory, I caution against this treatment for the following reasons. The aggressive exfoliation done with dermaplaning can remove too much of our stratum corneum - which is the dead skin cell layer of skin - causing irritation, susceptibility to sunburn and sun damage, and increased risk of infection and contact dermatitis. After this aggressive exfoliation, many people complain of their skin being sensitive and burning when they apply their usual skin products.
These complications are all what can occur when you mess around to much with your natural skin barrier. Our skin barrier function is important for protection from so many things as I explained. Some chemical peels, and microdermabrasion devices have a similar effect and are no better for your skin. There are certain settings where gentle, controlled exfoliation is appropriate for your skin, but should be under the guidance of a professional. Either a dermatologist, plastic surgeon, or aesthetician who works ubder their supervision would be appropriate for safe, and helpful exfoliation.
If you are reading this and you do or have had success with dermaplaning, then you are a lucky, exception, and are still at risk of any of the complications I listed.