Wouldn't that be more related to parallel processing power and throughout capabilities than feasibility?

More data in any situation where bandwidth is already maximized will lead to entropy and noise. However, if the capabilities were there to process all of that data in low latency scenarios with headroom to spare, surely adding additional sensors and data points would lead to a more complete model of spatial awareness for the car.

That's all hypothetical and reliant on ignoring the realities of running a business and tech development lol