Thermostat Learning Algorithm

So the Wyze Thermostat was released last year with the promise (still on the webpage) that Learning Algorithms were to be released in 2021. Yet, here we are in mid November and no release!
Wyze as released add-on products (the new room sensor) but have NOT completed development of the Thermostat as advertised.
Upon contacting Customer Service, all they could do was try and upsell the sensor to me (which does NOT enhance the fuction) and say they are STILL working on the Thermostat functions.
So my question, that I hope SOMEONE from Wyze can answer is when should we expect the release of the promised functions for the Thermostat? And why develope add-ons when the primary product isn’t complete???