We must not question God that is my answer to the question He knows how to deal with people in any given time any given day.
Romans 9:20 Nay but, O man, who art thou that repliest against God? Shall the thing formed say to him that formed it, Why hast thou made me thus?
That what the Bible says no one can question God.The ark of covenant is a secret thing that God does not allow any man to touch HE has appointed some people to touch it.
He did not varnished them because their was a pronounced punishment for them not lasting death.
Revelation 22:18-19 For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.
So it is not instant physical death but a curse plagues that are sickness of body and mind their are sickness of modern civilization that damage the body like AIDS is a plague they will not die instantly they have 7years to live,Diabetes is a plague they will not die instantly they have about 25 years to live,Hepatitis B is also a plague they will not die instantly too they have like 7 to 8 years to live as well.
The plague will be upon those who act against the Bible.
Do not get ahead of God,God knows what HE his doing
[Source bible reader] http://play.google.com/store/apps/details?id=bible.kingjamesbiblelite