The Bulbapedia page lists regional changes and censorings, but says nothing about the crucifix not being original.

As a side note, the plot summary section is worth a read, holy hell. “…After leaving Acapulco”, “…After being shot with a bazooka by Jessie…”

I think I don’t remember this episode because it’s overshadowed in my memory by the very next episode, Bye Bye, Butterfree.