While those are some nice cherry-picked examples, fortunately for users, thats not how platforms work.
If Steam (or any platform) gave every publisher one strike for breaking their rules, then every publisher would manipulate reviews as much as possible until they got caught. Then, they'd never do it again. Regardless, even a little bit of manipulation done by a large enough company can generate at least tens of thousands of dollars based on misinformation.
That's not even mentioning the response of gamers, who are typically an incredibly rabid bunch. There would be blood. It wouldn't be overnight, but Steam would eventually lose their foothold as the industry-standard games marketplace.
Platforms—every platform, be it Steam, Amazon, Apple, etc—have to be incredibly strict or else opportunists *will* exploit them to make as much money as possible, as quickly as possible. Platform holders are beholden to their users, or they'll go to a competing platform. While every platform holder has their own quirks and levels of strictness, its indubitably a good thing that there are no warnings or exceptions for people who break the rules. If this CEO didn't want to tank his own company, he should have either made a better game or hired better marketers.