HomeKit was announced in June 2014, and released September 2014.
Thread was developed at Nest. The Thread Group was announced July 2014, far into HomeKit's R&D cycle. There wasn't much, or obvious, commercial support for for years. (Although to be fair, HomeKit has taken forever to get traction, too.)
I believe that at the time Apple was also concerned about the quality and security considerations of a Thread-like system. I can't prove or cite this, but having worked with Apple engineers who worked on MFi (ironically, I worked with them at Nest, not Apple), I'm skeptical of the narrative that it was devised as a revenue source. My sense from the culture of Apple when I was there (90s) and everything I see coming out of there more recently is that Apple tries to maintain standards of peripheral quality, security, and compatibility and that have been difficult to find in the Android ecosystem, say, although this has been detrimental in the case of HomeKit adoption and they've finally backed off.
Thread was developed in the Thread Group, and like any standardization body, was (and is) open for any company to join at a variety of membership levels.
All members had input in the specification, and subsequent specs.
I know you're being sarcastic, but for folks who are actually interested, you can request access to the Thread 1.1.1 specification here [1], and you can contribute to Nest's open-source implementation of Thread here [2]
Thread was developed at Nest. The Thread Group was announced July 2014, far into HomeKit's R&D cycle. There wasn't much, or obvious, commercial support for for years. (Although to be fair, HomeKit has taken forever to get traction, too.)
I believe that at the time Apple was also concerned about the quality and security considerations of a Thread-like system. I can't prove or cite this, but having worked with Apple engineers who worked on MFi (ironically, I worked with them at Nest, not Apple), I'm skeptical of the narrative that it was devised as a revenue source. My sense from the culture of Apple when I was there (90s) and everything I see coming out of there more recently is that Apple tries to maintain standards of peripheral quality, security, and compatibility and that have been difficult to find in the Android ecosystem, say, although this has been detrimental in the case of HomeKit adoption and they've finally backed off.