I also had a NDE and experienced heaven... while I absolutely believe in everything I saw and experienced - and what I saw and experienced is similarly in the Bible, I still question NDE's. ALL of them.
Some explicitly go against Biblical teachings, I've read several since what I saw and experienced was confirmed Biblically after I was saved and that's a fact, many if not most are unbiblical.
Second, even mine which is NOT unbiblical some people (even me) will see biblical things in it, and I think that we can't take our beliefs based on feelings.. we must take them from the word of God itself..
So, while this gentleman who came back can be described as a miracle (of this I have no doubt) I don't think we can or should read much into ANY NDE.. some can be the demonic in sheep's clothing.. and I think everyone that has an NDE, it is more for them than for the general populace.
Take mine for instance - for me it was another layer of confirmation that the Bible is from GOD, but I worry about taking more away from the experience other than I KNOW this God.. and it is He I serve.. It is HIM before me always, (and I never even saw His Face, but I FELT His presence).
So I just think caution first, the Bible is God's word. Go by that...