It takes an additional risk if you have to send someone in there to take measurements first, just because a person fits through holes doesn´t mean the vehicle can. You might skip that or replace with estimations, maybe there is data available, but a rescue vehicle that gets stuck or fails means more additional problems or block the only way available completely. There have been disasters in which a quickly hacked together machine worked very well - no doubt about it.
But aside of that I think it is possible to worsen a situation with help.
Anyway, someone in charge needs to take the decision what is done and not be occupied with a direct or media-implied discussion or giving/receiving lessons while trying to do the best under pressure. I don´t think criticism (especially not in that wording and form) does actually matter right now or would be useful, this is just egos.