Attention! It needs maintenance all the time

Yes it works out of the box. But what it does it to completely remove default scripts from WordPress and insert modified script without tab-code. What does that mean? If the WC-Team do changes to the important single-product.js script in future, the plugin author has to adapt those changes to the modified file!
unfortunately it is not really possible to avoid this because WC-Team has no hooks inserted for this to overcome. Only easy and nearly maintainable solution would be custom javascript in the footer:
$( '.wc-tab').show();
and css:

.wc-tabs-wrapper .tabs.wc-tabs {
      display: none;
}

its up to you if you prefer client und server side solution.