You are raising a key point
@Carlos chuks - the officer is the key. Our first HC was rejected in Montreal in July 2020.
In September 2020, We changed lawyer and sent it for reconsideration, which was essentially an entirely new application with new cover letter and new evidence. It went to the same officer in Montreal and she refused it again: she reprinted her rejection letter from July 2020 word for word and even kept the original date on it (July 2020).
In April 2021, I took the 2nd HC, translated everything into English word for word and sent it again to Vancouver. I did not even bother changing English evidence: just reprinted everything from 2nd file. And guess what? It got AIP. These 2nd and 3rd HCs were absolutely identical, except that one was in French and another in English (and I replaced lawyer's cover letter with my own cover letter), one went to Montreal officer and another one stayed with Vancouver officer. Yes, officer does matter. More than we could possibly think.