That's your opinion. If he was to respond to every nervous email, he wouldn't have time to take care of the situation and run his real estate business. There is only a certain amount of hours in a day. Most people that are busy must prioritize, answering nervous nellie emails would not be top of anyone's list in a situation like this.
Watch Megas going forward, I think you will eventually agree on how professional his actions are.
"Every gun that is made, every warship launched, every rocket fired, signifies in the final sense a theft from those who hunger and are not fed, those who are cold and are not clothed."
Dwight D. Eisenhower