I massively disagree with your reasonning as to why vision only has advantages, or at least i disagree that they're really advantages. What you are saying and

I massively disagree with your reasonning as to why vision only has advantages, or at least i disagree that they're really advantages. What you are saying and I understand you're not saying this is the way to go but merely giving a point of view but hear me out, is that if you have two inputs instead of one, the two might disagree, which makes it harder to figure out which one is right. But if you have only one input, it can't disagree with it self so it's easier to decide. But if the one you have is the one of the two that would be wrong, you haven't gained anything, beside being sure about it while being wrong. At least with two inputs you're able to know something is off. And usually you add more inputs so you can decide, and make a strategy depending on context (absolute majority, 50%+1, ...). And sorry but if when having multiple input the system is confused, or needs time to correlate all the data, or whatever like that, this is still useful as again it lets you know something is wrong danger will robinson. I think the field of engineering, with planes and spaceships and whatever, has proven how the "simplificity" advantage of single sensor is a scam that will cost lives to avoid fixing issues.