User blog comment:Brandon Rhea/Wiki Modernization: Videos on Mobile Devices/@comment-26437440-20170517203523/@comment-20644-20170517234158

Since it's a newer product that's still evolving (in both the features and video content), we want to make sure that we give users the opportunity to experience it again and help us in getting more data and, ultimately, creating a better video experience.

We have not ruled out a permanent disable options in the future, though.