The Vero 4K / 4K + have long term support (several years remaining). Other AMLogic devices will need to use a modern software stack that implements V4L2/GBM or they will not be usable after Kodi v18.
The new Pi requiring V4L2/GBM is great for Vero users, because it means we will get wide scale testing and implementation by a large vendor. Then with Kodi v19, we can switch over to this pathway without any disruption.