What is the point of using the front-page.php template? [closed]

You would use the front-page.php template because it allows to have custom content and layout for your website’s static front page.

You can edit content on your static front page from inside the WordPress admin if the front-page.php template contains the the_content() template tag or similar.

It really depends on what your content and presentation requirements are for your static homepage. Leaving out the front-page.php might be enough if you have basic content and presentation requirements. If your content and presentation requirements are more complex you might need to code or find a theme with a front-page.php template that better suits your needs.