There is not better way, unless you manually adjust the php code. The portfolio module can be shown gallery format post only, you could try to change the file(/functions/pagebuilder/modules/portfolio.php)to let it shown video format post.
Also real quickly, is there a way to globally turn off comments? I don’t want there to be any option for comments on the website?
for existed posts: https://www.dropbox.com/s/tteeevt3ohwsq63/QQ20150304-2.jpg?dl=0
for un-published posts: https://www.dropbox.com/s/gdrfr8roez4rk3j/QQ20150304-3.jpg?dl=0