Toxic is not the highlighting of breaking the build with a trophy, it's what gets associated with it.

Imagine an "ugliest shirt" trophy, given out to whoever wheres the ugliest shirt of the week. At a fashion magazine, this may be toxic shaming. At a tech-heavy startup it might have people start buying the worst shirts they can to try to win it.

If the attitude associated with getting the trophy is condemnation, that's bad. If it's a reminder that everyone fucks and be careful, that's fine.