Although mostly accurate, it is too noisy that architects and engineers do not want to use. It contains no planimetrics or other features such as manholes, lightfixtures, etc. that are needed for design purposes.
For most processing software the contours are distorted around vegetation and are unusable.
"Anyone can produce a one button solution with todays processing software however that does not make a person a professional mapper."
To be a true professional mapper you have to put in the time, effort and skills to produce a product that is of a professional grade.
Prior to drone technology, on the ground field survey methods that took weeks to collect the data were needed to build a 3D model that could be used for design purposes. It was expensive, time consuming and labor intensive. Drone and processing technology has made the field collection process much quicker with the added benefits of an orthomosaic. Drone technology does not replace the methods and skills needed to produce a professional final product.
"A drone is just a tool."