Not only have I heard of him, I researched his book, Far from Rome, Near to God, to find out if the stories of priests who left the Church were true. Many of the priests were real priests - including Bennett - but there were “errors” & outright falsehoods. The good news is that at least 3 of the priests returned to the Church, 1 to the active priesthood. These stories were left out of the 2nd edition. I wrote up my research & posted it on a Catholic apologetics site.
Bennett lived in Portland, OR at the same time I did, but I never met him. I did, however, write to him about the “errors” I found (I was really polite!) He didn’t reply, but his wife did. She consigned me to hell for “Catholic” practices such as lighting candles, worshipping statues & so on. Not a nice person.