Didn't you read:If not Jacob's ladder, then what is this about? There's only records of the Holy Spirit descending upon him at his baptism and he himself ascending into heaven.
And there are also many other things that Jesus did, which if they were written one by one, I suppose that even the world itself could not contain the books that would be written. Amen. (Jn. 21:25 NKJ)
Jesus did MUCH MORE than recorded, He "blew everyone's mind" with the supernatural. Angels attending Him isn't as spectacular as raising Lazarus from the Dead, is it? Picture it in your mind, He commands they roll away the stone. Everyone thinks He is nuts. and He says, "Lazarus, come out!"
And He does! Still wrapped in burial cloths!
John and the other gospel writers were trying to communicate Jesus to us, who He is, what He taught. They selected events that accomplished that.
Bottom line. Jesus never lied. Never false prophesied. He said they would see angels ascending and descending, therefore THEY DID. Simple as that. Nothing mystical, no secret code. The gospel writers thought it sufficient to record Christ said this. It was an important part of the story about Nathanel.
Moreover, it seems to me, if anyone of them said "angles ascended and descended on Jesus today!" It just seems "redundant", so much about what He did was incredible enough.