As reported by @DarTar, on mobile web the "enwiki > 2016 Dyn cyberattack > Affected services" section looks like this:
But on the iOS app it looks like this:
It looks like mobile web has the following additional CSS which controls the column count:
.column-count, .references-column-count{ -moz-column-count:1 !important; -webkit-column-count:1 !important; column-count:1 !important }
I have a WIP which adds this CSS to our style overrides, but I want to check with Android first to see if they have the same issue. It may be we need to add this fix upstream so we both get the fix...