Thanks for sharing, I guess ur trying to emulate the modulation logic when on pure weather comp. within HA, I can recommend using multiple sensors across the house (average) - https://community.openenergymonitor.org/t/daikin-altherma-espaltherma-home-assistant-with-openenergymonitor/25057/253?u=tiger_cook
However, I have found using the Madoka as a setpoint and modulation works best for me, pure weather comp was like a nuclear melt down it would not stop, this is our 3rd winter and I think I have no need to fettle anymore, diminishing returns, I found dialling in the DT across the emitters was really beneficial for the upstairs as we have oversized rads.
I can also recommend modifying the Madoka and ‘quiet mode’ https://community.openenergymonitor.org/t/help-daikin-configuration-wd-curve-and-modulation-with-a-madoka-room-thermostat/25089/47?u=tiger_cook
Hope this helps?