Ather should / may have considered this done. While 450x has the capability and not hardware limited the TPMS data can be pushed to the app. since if there is a small air leak and you left it unattended the app can remind to fill up the air. But for 450 I have considered using the internal TPMS since I just cannot check every time to know what’s the pressure inside the tire. Carrying a portable Air compressor like MI is also very helpful. I bought it way before they launched in India. through aliexpress.
There are only 2 services that do a Phone → Cloud → Dash service calls : Maps and Documents. They would have to build an entirely new service to integrate this.
Also there is a huge dependency on phone Bluetooth being on all the time and the app running in the background for TPMS data to sync continuously.
adjusting mirror is definitely not easy but the design is good. you can actually adjust according to your liking provided you use some force, dont worry it will not break.