That's not obvious. Something with critical damage potential shouldn't be hidden in a reading in an obscure display page where a value has to be evaluated by several rules.
It should be a caution light or something at least.
I'm not advocating that Boeing is proposing a sensible path here; I think they're not.
But ATPs don't have any trouble evaluating "am I in potential icing conditions?" as they've been doing it for one to many thousands of hours previously.
I understand. It's just that most accidents have not just one cause but a whole chain of them. Something small happens that causes the pilots to be distracted trying to fix it, meanwhile ignoring the elephant in the room or forgetting a 'routine check'. The flight deck isn't always a relaxed place and this is when these things can get out of hand so easily.
This kind of mistake has been made so often and lives have been paid that I find it crazy that it's still being proposed.
But ATPs don't have any trouble evaluating "am I in potential icing conditions?" as they've been doing it for one to many thousands of hours previously.