It has to do with the state of the broadcast industry. It's a vicious cycle. Stations are prohibitively expensive to own and operate in America, largely because of the FCC (whether it's FM, Cable TV, etc.) This means only big, evil corporations like Clear Channel and Viacom have a chance at running the stations. On stations like these, most of the programming is commercials.
When it comes to the broadcast industry, music (and content in general) is what happens between commercials. Thus editing down and Opeth song for length is something done out of a certain necessity to fit in the programming schedule. It sucks, and in that example, it is the utter ruination of a great song. However, I don't think that the motivation is to "appeal" to a "brain-dead" demographic with such edits - it's simply to fit the song between commercials.
This kind of commercialism is why I largely ignore TV and radio and stick to the Internet.
Yeah, I'm a master control operator at my local FOX affiliate, meaning I'm in charge of all programming, satellite feeds, run-times, etc. etc. I know all about that sorta stuff.
Yeah, the Opeth thing makes sense...cutting down a 9 minute song so it's more 3:30-radio friendly. They do that with syndicated Simpson episodes. The network will air the new/debut episodes in their entirety, then a year later they'll show up in our syndicated library...but missing a few scenes, lol! Each half-hour show is actually 28:30 long, and they need to stuff as many paid spots into that 28:30 as possible. Our station will even cut 5 second program bumpers just to slide more spots in the show.
However, I will point out that I do regularly hear 7-8 minute Tool songs all day long on my local hard rock radio stations. The classic rock stations are also quite fond of the super-long Led Zep, Pink Floyd, Doors, stuff too.
So who told Opeth that they need to shorten up a song so they can have a radio single? Roadrunner? Broadcasters? They're both evil, so they can both take the blame.
I love my little low-market affiliate job though, so am
I part of the evil media-corporation machine? Lol!
Anywho, back on topic...the KSE thing doesn't quite fall into that reasoning though. But alas, there's no use to fret about it and make a big stink about it. It's just kinda odd to me, and it made me think of Opeth when I saw them on MTV2, and how I was bummed out that they completely screwed up the pace of one of my favorite songs.