I can see a great deal of work is going into it, and I’m sure it will be a big improvement.
That said, it appears no thought has been given to improving accessibility for those who have either vision or mobility impairments.
Just as an example, when the primary navigation is put at the very bottom of the screen, those using either Voice Over or switch control navigation have to step through everything else on the screen before reaching the navigation choices, making use of the app both cumbersome and physically tiring.
I suggest the UI team take an hour each, put on a blindfold, and try using voiceover to complete 3 or 4 set tasks. This will give them a better understanding of accessibility requirements.
Those with physical challenges are a significant market for home automation systems. It makes sense to put at least a little thought into how the app will work for them.
Submitted with respect.