That's disappointing.
When Insteon was a new offering, I was really impressed with the performance, the longstanding X10 PLC issues addressed in its design, and the X10 backward compatibility. I was hopeful that it would eventually match or surpass X10 in terms of low cost, support by other manufacturers, and making the standard more open and accessible to hobbyists and hackers. From my perspective, that never quite happened. I did buy a couple dozen Insteon modules and used them strictly with X10, still hoping to get more out of that investment in the future. Eventually, they started removing X10 compatibility from their module designs, ceasing X10 support, and/or crippling the X10 compatibility in some way. That was the end of it for me.
Insteon was introduced at a critical point in the boom of a new generation of home automation technologies. I feel like it never gained the momentum it needed early on to ride the wave. Regardless, I'm not sure that the protocol design was forward-thinking enough to continue to compete with modern tech in all areas of home automation. It started off strong as a superior alternative to X10 PLC, but that's just not what the industry wants anymore.
FWIW, I'm still hoping that Insteon has some kind of a future in the low end market. But I don't know how accessible it will be to the kind of manufacturers who would pick it up for that purpose in the short term if patents are still in place. And official licensing could be messy or impossible, at least for a while.