If it were a simple name collision in the way the original commenter seemed to mean, you’d search for your name, and see the photo and biography of a different person.

The article writer searched for his name, and found his photo attached to somebody else’s biography. That’s an incorrect search result.

No, he found another person's biography near his profile photo for his X blurb. They were in distinctly different content bubbles, even if it visually looked similar.

This reading isn't supported by the text

Too bad Tom Faber is dead so we'll never know the truth.

One day we’ll understand the mystery surrounding the death of all Tom Fabers at once.

To me, a name collision is when two or more entities share the same name or ID. What's claimed here is that Google was showing the photo of one person on the bio of another person. That's an identity consolidation error, where two unrelated people are treated as one. The name collision presumably caused the identity consolidation error, but you can have name collisions without identity consolidation errors.

As this article rightly points out, people don't tend to care for why your lossy abstraction is making them out to be dead.