Rugged off roader or not, it still, unfortunately, has to follow regulations for warnings... Although I understand what you're saying.
I wouldn't put off the Ineos response as simply "they have chosen to do nothing". My following statements aren't attempting to justify the corporate decision of shipping a vehicle with the current software options, but there are other brands that have followed the same process of not having an end-user clearable service indicator in their vehicles. For some of those other brands, which almost certainly sell more vehicles annually, the aftermarket has stepped in to create tools to handle that need (just like with TPMS). For the many companies that create such tools, it is a fairly easy transition when a new model is released, as the car brand sells a wide number of vehicles that use the same factory scan tool. This lowers the overall cost of development and increases the potential return. Ineos does not use a scan tool from a different pre-existing vehicle brand (it uses Bosch Grade-X), and given the low volume of vehicles produced, decreases the likelihood that an aftermarket software company will invest the time into developing tools for it.
Additionally, I believe there are folks at Ineos that understand there is a desire (perhaps some would say a need?) for an end-user service reset, so who knows what will come in the future. These vehicles have been in owner's hands for just over a year globally, there will inevitably be changes coming down the line for all sorts of things that are realized and brought up. IMO, expecting these changes to occur within 3-6 months of being verbalized is unrealistic given the channels and processes required for any global change, especially one that isn't categorized as "essential"