It's a bit more complicated than that, lol.
What features did you have in mind for the cloud functionality? It sounds like mostly just cloud backup for select clips like when an impact is detected or the user triggers a manual recording?
Most of the cloud features I use are for things like remote notifications in case my car is hit while parked or being able to livestream into the dashcam at any time. It's also nice to be able to update the firmware OTA as well. Cloud backup is nice, but secondary. Everyone has their own use case of course, but for the notifications and livestreaming, that's more about the manufacturer running their own servers and then creating an app that handles the notifications, image previews, UI for accessing video clips, etc.
If a manufacturer is going through the work to creating a server to let their user utilize the other cloud features, then adding some additional storage is a natural extension. If people want to have their own servers available or connect to Dropbox, their own NAS, etc., that's cool too, but I'd imagine a very small percentage of the population would want to do that, plus it'd mean a bunch of additional R&D and tech support needed to support each external cloud storage option. Again a manufacturer certainly could, but it would probably make more sense for them to keep things in house to simplify the product creation and support, plus they could also get another revenue stream by offering the option for paid cloud features.
