> So, if you’re worried about it: stop putting sensitive data into private repositories.
Most of the issues mentioned in the post (misconfiguration, phishing, mistakes, zero-days) apply to all software, including non-cloud software. So the above advice is equivalent to "stop putting sensitive data into computers". It's run-of-the-mill popular-security nonsense that conveniently ignores that the alternatives come with their own risks, including security risks, and doesn't even attempt to perform a cost-benefit analysis.
Less of this stuff, please.