> he said crossing the event horizon would be unnoticeable

...To a body that is in freefall.

A body that is suspended over the event horizon would be experiencing atom-crushing acceleration.

Compare to a familiar scenario: If you are freefalling towards the Earth, you can't tell apart your experience from one of floating in interstellar space (ignoring tides, which is what we neglect when we say the black hole is large). If you are standing on the surface of the earth, though, you are experiencing 9.8m/s^2.

Near the surface of the black hole, there would be so much acceleration required to counteract the gravity there that no material could possibly stay intact.