Reversed? I hope so. Don't count on it though.
Back in halcyon days we (a bunch of students) dabbled with web/net/multicasting audio over the university network and of course that was a great excuse for an excursion or two to the local "real" radio station. It was interesting for everyone involved.
One of the things we were shown was a Very Expensive Magic Soundbox that was basically a bunch of companders and graphic equalisers and such. I forget the details but what was really interesting was this difference: The "sound makers" explained that the thing put their "station fingerprint" on the sound. The techies explained that the thing folded the sound so as to most efficiently fit on an FM carrier, sound the loudest, and so on.
Maybe both had it right, in fact I think it's likely both are true at least to some extent. The interesting thing to me was the wildly different explanations. Anyhow, I think it's a somewhat relevant data point. And as mentioned already, loudness sells.
Another dot to connect is that music quality has come down, not so much because in yon days of yore everything was just better (which is indubitably true but not relevant here) but because Big Music doesn't appear to want, or at least it fails to bother with investing in and nurturing new actual talent into becoming the new Rolling Stones or David Bowie twenty years down the road.
What they want is more stuff to push out on airwaves and into sales channels as quickly as possible, in as large amounts as they can get people to pony up for any way they can.
Point in case: Bad Candy. You probably will never have heard from them, but I was a hand at their first performance as the primary and in fact only item on the lineup.
Picture this: Some five 15-something girls that yabber somewhat uncertainly into the mike they've been training really really hard (in a villa somewhere, for half a year or so), honest, at being a punk band. Why yes, that's how you start a punk band of course.
Right under a really big, custom made electric banner flashing the band name, amidst a sack of equipment even seasoned musicians likely can't afford, and with some of the best session musicians in the country for roadies and guitar tuners.
This was a project by one of the names behind that big name of yore, The Golden Earring. It didn't work out so was abandoned, and rightly so, no offense implied to the cute girls. And, well, the big guy wanted to know if it could be done and didn't mind footing the bill, more power to him. But it illustrates the thinking.
The point with this is that according to big music, music doesn't need to be good. It only needs to sell, in large quantities. If it's not quality, and feh they'd rather not have that for it's something of a hindrance to cranking up the quantity, then something's got to make up for it. Well, loudness helps, meshes well with that other great marketeering trick, hype.
A few years back the problem of endless rehashing of old things on a snappier beat did come up on industry conferences. There it was recognised as a problem, a lack of input of fresh new ideas and talent, a lack of investment and so on. I haven't much paid attention lately as I stopped listening to top of the pops type stuff entirely, so I don't know whether they're still doing that. Maybe they've found new ways to "create music" out of no talent and no investment that isn't quite as blatantly copycat ripoffs. It was quite cynical in that the then-current generation hadn't hear that much abba and contemporaries. I could imagine that the only reason they stopped being so blatant was that the execs themselves got fed up with hearing the same thing rehashed over and over again. Anyhow.
And as long as that quantity sales thing remains the goal, unchecked by massive customer walkout that can't be handwaved away with mumbling about piracy and backed with made-up numbers, well, they'll keep right on trucking of course.
If that's indeed the thinking and the industry is still stuck believing their own bullshit it's easy to see how they won't turn around and go back to a more thoughtful, artistic, sustainable, and less obnoxiously loud route to making large amounts of money.
And now if you'll excuse me, I have an urgent appointment with a The KLF collection that needs listening to.