Can i use Webpack & ES6 modules on premium WordPress theme

I’m planned to develop new WordPress theme for TF. And i want to use Webpack and ES6.

I saw it from theme submission guidelines https://help.author.envato.com/hc/en-us/articles/360000479946#h_1231432561611522300349245

So if i use Webpack & ES6 not in accordance with this guideline. Right?

But i really want to use theme on my project. If you have any experience with this, please share it with me.