Hello mweper, thanks for reaching out!
I removed the oneway=yes tag from https://www.openstreetmap.org/way/1417967551, as there is a stop line spanning half the road visible in Esri World Imagery which indicates two-way traffic. With publicly available imagery I could not confidently verify that the entirety of https://www.openstreetmap.org/way/73899544 is not a oneway, as evidence such as stop-lines or ground-level imagery are not visible along its extent. I am unfamiliar with the resource you provided, but it does seem to indicate this section of Garibaldi supports two-way traffic. I'm not certain whether this resource is compatible with OSM's licensing requirements, but if you're confident in its accuracy and licensing, feel free to remove the oneway=yes tag. Thanks again, and have a nice day!