I heard a lot of this kind of reasoning about 20 years ago, right before Web 2.0 started taking off. Then, all of a sudden, people with that mindset would miss out on all the cool stuff other people invented for free around those products that had an open API, which could boost those products’ value enormously.
BTW, Elektron has enough experience in building the APIs for their devices, so I’d assume the current APIs are mostly stable (e.g. the original AR came out 10 years ago), and adding small features (like new models or parameters) is not a big deal for developers to keep up with. But if every small change requires reverse engineering that shit again, this becomes a pain in the ass. You shift the burden of keeping up entirely to those people who put in the effort to add value to your product. That does not sound like a good idea to me.