Why Eloquent not throwing an error when there's a typo in column name?

When using a simple statement for creating an entry in a DB:

Post::create(['title_TYPO_HERE' => 'My awesome title']);

This will actually create a post with title = null (let's assume it's nullable)

How to make Eloquent fail in such cases to prevent typos?

what you are looking for seems to be: (https://laravel.com/docs/11.x/eloquent#configuring-eloquent-strictness)

class AppServiceProvider
{
  public function boot(): void
  {
    Model::preventSilentlyDiscardingAttributes(! $this->app->isProduction());
  }
}