Wow Google, thank you for the stunning support! The effort you put into representing this cause is fantastic! Like, wow, this doesn’t even compare to what you did for the DW 50th!
The Google Doodle usually depicts holidays, fun anniversaries, and exciting events. More serious causes, like remembering 9/11, anti-abuse, and cancer awareness, are represented in a solemn manner with a ribbon at the bottom of the page. The ribbon is a more respectful way for Google to show support than plastering it on every page in the form of a novelty “doodle,” especially when it may be triggering to some Google users.