jQuery does not use the HTML5 dataset on date?

When modifying a certain initial value of data of jQuery, I noticed that the value of dataset is not modified.

Then I wrote the following test:

HTML:

<div data-value="initial value" id="div-test-1"></div>
<div data-value="initial value" id="div-test-2"></div>

jQuery:

First test:

$(function(){

    var $div1 = $('#div-test-1')

    console.log($div1.data('value')); // intial value

    $div1.data('value', 'new value'); 

    console.log($div1.data('value')) // new value


    console.log($div1.prop('dataset').value); // initial value

 });

Second Test:

$(function(){

        var $div2 = $('#div-test-2');

        console.log($div2.data('value')) ;// intial value

        $div2.attr('data-value', 'new value');

        console.log($div2.data('value')); // initial value

        console.log($div2.prop('dataset').value); // new value


    });

That is, for definitions made with data() , the values have been changed for jQuery, but not for the dataset attribute; and when changed in dataset , are not returned by data() as expected.

There is also another difference: We can set values of type Number , Array and Object through data of jQuery. dataset does NOT do this.

See:

Example with dataset :

$('body').get(0).dataset.element = {nome: "wallace"};

console.log($('body').get(0).dataset.element) // [object Object]

Example with data of jQuery:

 $('body').data('element', {nome: 'wallace'});
 console.log($('body').data('element')); // {nome: 'wallace'}

• Based on this example, can we say that jQuery does NOT use dataset of HTML5?
• And if "yes" to the first question, is there any specific reason for doing so?
• Is it safe to use dataset on projects where I'm not going to use jQuery?
• Why do they behave differently in regards to returned types?