Self censorship requires a threat or risk of detriment if the party doesn't self censor, right? Where is that here?
What Radix does has no impact on Google, and I don't see how Google would be incentivized to pressure Radix. So I don't see how to make the leap blaming Google for Radix's incompetence. Yes, Google should recognize the risk of this happening, but they'd have to balance that against the rewards (or at least what they consider rewards)
Google is making false statements about the safety of a domain and it has significant collateral damage. Google is the cause. They should be liable for losses.
I had my main family domain put on Google's safe browsing block list and it has a massive impact. No one can visit the site. I think apps using system browser runtimes (ie: mobile) may stop working. I've seen reports that it can impact email deliver-ability. And, now, we see that it can get your domain put on serverHold so the problem becomes impossible to rectify.
Google should have to pay for the damage. In my case, it was about 4h of work to figure out what was going on and how to fix it, so not much, but I've seen small businesses that rely on their primary domain to drive most of their sales via web and email. In those cases, having your domain placed on server hold because of Google's false statements can have a serious, detrimental financial effect.