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I am not the best of coders out there, but I do agree with the picture, and I am confident that my password would be neigh impossible to crack, unless google sells, it which is even less likely
There are a lot of ways that an online account can be hacked that doesn't require brute forcing or that much effort. The most common way is stealing users' password through phishing attacks in which case it doesn't matter how long the password were!
There could also be vulnerabilities that are unknown today but found in the future in their servers that could be exploited.
Here is the most recent massive hack in case you still think your google account is safe just because your password is long:
235 million Twitter accounts and the email address and phone numbers connected to them are hacked and the records are being sold online. They exploited a vulnerability in Twitter only found last year.