Please, explain to me what are the pitfalls to use ZURB Foundation's flex-video instead of responsive-embed (or vice versa). I've made a layout where I don't see any difference between two:

<!-- .flex-video -->
<div class="small-12 columns">
    <div class="flex-video">
        <object data="example_youtube_url"></object>
    </div>
</div>

<!-- .responsive-embed -->
<div class="small-12 columns end">
    <div class="responsive-embed">
        <object data="example_youtube_url"></object>
    </div>
</div>

They behave the same. What should I choose and why?

Please, explain to me what are the pitfalls to use ZURB Foundation's flex-video instead of responsive-embed (or vice versa). I've made a layout where I don't see any difference between two:

<!-- .flex-video -->
<div class="small-12 columns">
    <div class="flex-video">
        <object data="example_youtube_url"></object>
    </div>
</div>

<!-- .responsive-embed -->
<div class="small-12 columns">
    <div class="responsive-embed">
        <object data="example_youtube_url"></object>
    </div>
</div>

They behave the same. What should I choose and why?