This speaks to a point you made in the OP: that Jesus's resurrection could have been missed by many because it was hard to recognize the resurrected Jesus as Jesus.
I didn't say it
could have been missed.
No one but his followers were given evidence that he was alive.
He was resurrected spirit.
He could have gone to heaven without letting a soul know, but he appeared to his followers, for them to know, but he used a body. It was not the same body, so no one would have recognized him.
He was recognized because of using familiar expressions, and actions, to his followers.
He had nothing to prove top the world,
The proof will come later, according to the Bible.
(Ezekiel 38:23) And I will certainly magnify myself and sanctify myself and make myself known before the eyes of many nations; and they will have to know that I am Jehovah.’
Even if that were true, we would still expect people to notice when an army of dead people emerge from their tombs, walk into the city, and appear before "many people."
Sure. So show me where people did wave it off as nonsense.
It did not occur, so I can't show you what is not written.
Show me the passage in Josephus or the Talmud or whatever that says something like "the false prophet Jesus staged a fake zombie invasion of Jerusalem. It frightened many, but was condemned as trickery"... or "many dead saints walked into the city. The followers of Jesus claimed that he had also been resurrected, but Jesus was not seen among the dead that walked through Jerusalem."
... anything like that.
Do you at least agree that if "many" dead people rise from the grave, walk into the city and are seen by "many" people, this is the sort of event that should get noticed by chroniclers?
Of course any spectacular or extraordinary event would not go unnoticed... but depending on who sees it.
For example, the Pharisees saw many things that were extraordinary, but what did they do? They tried to hide the evidence, and mislead the people.
John 9:24-34 ; John 12:9-11
Their had such a powerful hold on the people, that many kept their mouth shut, for fear. (John 12:42)
So, you can see, people could see things, and it can be kept within a community, and not spread.
Even if it is spread, how many would believe, unless they saw it with their own eyes?
Powerful works were your everyday "power of the gods" thing, or magician activity, among the Jewish people. (Acts 8:9-13)