Same thing happened on the Mount of Transfiguration.
The glorified Christ is truly far beyond what we can imagine and I doubt many people will be able to stand on their feet in His presence.
Not the same thing. They did not fall as dead men, but continued to stand.
Transfiguration still did not reflect the glory He received after His ascension to the right hand of the Father....it was before His death, burial and resurrection - and before His ascension.
John saw Him in Rev. 1:12-17 AFTER He had been fully glorified.
And, even though he was the “disciple Jesus loved”, and had laid his head on Jesus breast at the Last Supper - fell as a dead man.