The first link is about PHP-PM, which is not mod_php, and is a new and unproven stack. The second link is a completely bullshit "echo 'Hello World';" with 100 concurrent requests - that benchmark is offering the stereotypical, utterly meaningless, metric.
The fact is that Apache + mod_php will keep an instance of the PHP interpreter active in every single child httpd process. With nginx+fpm, your static assets are served directly from nginx without the overhead of an unnecessary PHP interpreter loaded into that process, while only your PHP requests are funneled to FPM. The performance overhead of having a PHP interpreter loaded into the process that is only serving a static asset is astronomical.
At the end of the day, benchmark your shippable product. Never try to benchmark a "Hello World" or a Wordpress installation if you're not shipping a Hello World or Wordpress codebase. Purely based off professional experience, I have never seen a real-world app perform better on Apache+mod_php than on nginx+fpm.
The only thing PHP 7 gave us was essentially the ability to ignore HHVM as a "required performance booster". 90% of companies were already able to ignore HHVM; with the improvements made to PHP 7, it's now 95-99%+ of products that don't need to evaluate HHVM as a mandatory alternative. And yes, nginx+fpm is still the defacto standard for PHP 7; the links you have provided do not say any different.