We do not know everything about the universe, but we know some things. We also know there is not much room in the theories of what we do know to support any claims like this.

It is certainly possible, but it would require a rethink of our current understanding of nature. That has happened, but most of the time when presented with anecdotes like this... it does not happen.

They didn't say anything about current technology, they simply asked if here was current evidence.