Well, I'm in Europe right now, so I am working from home. I told my manager today that no work is gonna get done when EU is playing and he was like lol yeah that's fine.
At least in my team (information security in dublin) it's something of an annual ritual to enjoy worlds together. Most of us really enjoy watching it.
in the Dublin office, Worlds is tradtionally on all of the screens when it's broadcast at EU-friendly times and, no, no one gets "in trouble" for watching it - it's a cultural thing, but in addition people are trusted to use their time wisely and do the work they commit to on time without micro-management. My boss doesn't care if I am watching worlds at work as long as I get all my sprint work done each sprint.