In a way this might be explained away with changing expectations by the audience or it's a way to grab audience attention. I think it also depends which media you consume and how that's funded. I think public broadcasters like the BBC are less likely to add music to their proper news segments than CBS because they don't need to sell commercials for pharmaceuticals with an unending list of side effects. In my European view, American news at least since CNN became a thing has always had an emphasis on form over function with more pretty people reading the news, sound effects, animated graphics, breaking news alerts, etc. Unfortunately, a lot of that has filtered through elsewhere as well.
Music on news is nothing new though. I remember Enya infused VTs of collapsing World Trade Centers and videos of the tsunami and exploding nuclear reactors in line with some trip hop beat. And I remember people getting mad about that back then as well.
Probably not. And they find jobs in calmer setups or they get out of the kitchen. But for the rest, that isn't a deal breaker. If that's what you want to do then that's a likely way to have to do it.
The somewhat military order in a professional kitchen is by design. Order is important. I've gone through weeks of training in a fine dining kitchen and having worked in hotels I could look into busy kitchens from the sideline. Culture plays a big part. You can have a busy orderly kitchen without too much shouting and people not hating each other at the end of service.
A lot of the drama that happens between people, if it isn't stress, is the fact that advancement options are limited. The higher up you get in the hierarchy, the fewer jobs will be available to you.