When you're the captain of a huge cruise ship and there appears to be an iceberg ahead that you cannot yet fully see and you decide to quickly reverse all machines, because getting it wrong would be devastating and make you responsible form possibly millions of deaths, then, if your staff - not holding any responsibilities beyond their own reputation - starts questioning your decision: "why are we stopping, we'll arrive late, it's probably not that big, we could just go around"... I can kind of understand why that's not welcome... it also is a  little different from "just" doing science in a lab, where getting it wrong has no real world consequences (most of the time).<br>Of course, as soon as the situation is fully understood and under control you should reevaluate and adjust your course, but playing it super safe at the beginning is quite understandable to me.