Earlier quoted context omitted.
Don't be confused! That's not how they made the decision; it's how they're selling it.
So how did they decide?
Why does google kill any project? the people who made it moved on, the new people dont care because it doesn't make their resume look any better.
basically nobody wants to own this service and it requires upkeep to maintain it alongside other google services.
google's history shows a clear choice to reward new projects, not old ones.