Hang on - following https://www.openstreetmap.org/user_blocks/15905 and https://community.openstreetmap.org/t/my-apology-to-my-fellow-osm-editors/111649 I'd have expected to see a discussion somewhere about this road clas change before "just doing it" (read the part of the message that starts "Please do not start changing road classes again...").
Was there actually some discussion that we missed, or should this just be reverted pending discussion?