Maybe Ineos truly wanted to copy the old Defender including unique British electronics. There was a reason you could get replacement smoke for Lucas electrical components.
All joking aside there seems to be some bugs in the system and I found another way to turn the alarms off and still have a functioning front parking monitor. I have a NAS spec Ineos and ordered the factory Bull Bar from Australia. After installation I had the alarms from the parking sensor, so I turned off the Front Park Distance Control. However, then when I was driving I would get a very random clicking even with the Over Speed Warning off. So I turned off the Speed Change Info (which appears to stay stored) and the clicking stopped.
Then to experiment I turned the Front Park Distance Control back on and tested its function which worked, indicating close objects in the front.
To recap if you add a Bull Bar and are getting an alarm turn off the "Speed Change Info". This at least worked on my car.
Update: After additional driving just turning off the "Speed Change Info" and not the "Front Park Distance Control" does stop the vehicle from alarming with bull bar, but at the cost of making the front sensors extra sensitive. So probably best to turn both off until there is an update from Ineos.