I suspect your take is correct but I understand the alarm from the previous poster as the way it's worded makes it sound like they'll look just for condition X,

I suspect your take is correct but I understand the alarm from the previous poster as the way it's worded makes it sound like they'll look just for condition X, Y and Z and _then_ take action versus your explanation which looks for a lot of incoming, bad data and then handles it. This might just be a bad case of people talking past one another.