I think the Classic workflow is the only way to upload them. We don't have a specific workflow for the Autel stuff yet because their tags don't have very much information in them like there is with the DJI and Parrot images. Feel free to give them crap about it.
In general photogrammetry doesn't work very well unless all of the images are temperature/color equalized and even then it is hard with the limited resolution. That is why we made the Flat Maps workflow but it requires good tags.