not in number of subscribers - they know the channel already, but in quality of content and production values. I think that's what OP meant.

F9 could get 2M subscribers by just doing product reviews because they're an ecommerce website in Canada like Revzilla is in the US, and that Youtube channel (https://www.youtube.com/c/RevZilla) has 1.5m subscribers.

F9 has a few product reviews, but they have a ton of just top quality content that shines for not just the motorcycle content, but how its presented, the attention to filming and editing, etc.

Oh and if you're interested, they even have a video about cheese (it was an april fool's prank, but still informative about cheese).https://www.youtube.com/watch?v=a1T7NzCtWHo

Yes you are right his content is well done. By hidden gem yes he has millions of subscribers but for some reason many riders I have asked about him have never heard about him. I just got the sense that some how a lot of people have never heard of him and I think he deserves some recognition for his content.