[websterisk]

I suspect that the issue here is that either the VP was insecure or that the engineer said it in an accusatory way (or both).

In all likelihood, the engineer meant "that approach/idea/decision has risks we should consider." The VP likely heard "you are suggesting something wrong/dangerous/ignorant."

A nuance here is that the engineer probably implied that "(We should be) careful (in our consideration)" and the VP perceived "(You need to be) careful (and you don't seem to be)"