I notice that Pro 1.4 has Orthomapping functionality. I guess this will be a lightweight version of Drone2Map?
It is „Cruiserweight” version of Drone2Map. It supports drone, satellite, scanned and digital aerial imagery. It can produce DSM, DTM, ortho, colored and classified point cloud (for example buildings). The images are stored in a mosaic dataset and every processing step is available as a geoprocess. So you can run a whole photogrammetric process from python or Model Builder. These geoprocesses are also available in ArcMap.
thanks, a bit more light shed on the issue here
Esri’s Ortho Mapping Tools and Drone2Map App Help You Manage Drone Imagery | ArcGIS Blog