I don't think it's just the tone. At the start of the article, it implies relation and CRUD approaches should and will be replaced by Event Sourcing approach,

I don't think it's just the tone. At the start of the article, it implies relation and CRUD approaches should and will be replaced by Event Sourcing approach, but he doesn't support that, or even provide a good sense of pros and cons. In one of his comments (comment section) he mentions that the article was supposed to be a "how" not "why", and links to a "why" article, but that "why" article also doesn't do a good job of why with pros and cons. In summary: not a good presentation of the pros and cons which allows a person to clearly identify under what conditions this approach might be a reasonable tool. Additional note: A typical competing model, IME, is a relational model that writes business events at the same time state updates occur.