Theory isn't really all that applicable to this though - in theory nothing is stopping anyone from writing all code in assembly, but obviously that doesn't happen.

I think more practically cars have adding driver assistance feature for a while now - more cameras, blind spot monitoring, ultrasound for parking, lane drift indicators.

It is therefore not unreasonable to assume that adding more sensors is helpful (but even the old adage of more data is better than less would probably say that).

To be honest, it's possible that having too much data can only cause problems in quick decision-making. Any redundant data will only slow down processing pipelines.