You said there was a good chance it was the right decision. That may be true in some amortized sense across all hires, but you implied that it was also likely the correct choice in this specific situation. I don't think putting that much faith in the results of the hiring process is justified.

Jobs interviews at Google aren't near perfection with a slight bias towards false negatives, and it's unfair to the people who don't make it through to suggest that they are.