You could argue its not necessary to achieve performance for an L2+ product and so keeps BOM cost down while still achieving goals. I'm not personally opposed though, the systems I worked on did have other sensors we could use.
That wouldn't resolve the concern around debugging/root-causing and remediating failures more quickly though. You still have a black box system that is difficult to simulate closed loop.
That wouldn't resolve the concern around debugging/root-causing and remediating failures more quickly though. You still have a black box system that is difficult to simulate closed loop.