I think adding novelty features, like Alexa support, is not something most users will use for this type of application.
Personally, I don't like those devices listening to what's going on at all times in my house. Yea, it only responds to key words, but it's always listening. I shut off the "OK Google" voice features on my phone also.
Removing the 0-10v ports was a bigger issue because that's what most 3rd party hardware operates on for any controllability... return pumps, lights, skimmers... correct?
Maybe to bring down hardware costs Neptune could implement a subscription service for Fusion and the app. Kind of how Microsoft and Sony do for their game consoles to operate online.
So reduce the price of hardware but charge $50/year for Fusion/app support. That covers your R&D for all of the software enhancements and can bring the price back down to earth without removing features that most people would use.