Louder is not better, quality of sound is better.
I agree turbo charged engines are inherently muffled by the additional exhaust plumbing, but remember without Ferrari kicking up a stink the engines would have been inline four cylinder units. Imagine how poor the acoustic qualities those engines would have been(Sorry GTi, V-Tec enthusiasts and no apologies to the "it was better back then" stalwarts the 4 cylinder super powerful turbo engines of the 80's made flames but actually sounded a bit rubbish). The new V6's have far more potential to produce engines notes throughout the rev range far more pleasing to the ear(even with the compromised 90 degree angle stipulated) than the outgoing V8's even the V10's. 8's and 10's may scream loudly but they don't necessarily sound beautiful- there are few exceptions(flat plane Ferrari V8's, Porsche Carrera GT etc)
Engines comprising of multiples of 3 cylinders inherently create better harmonics(there's a reason Zonda's, Ferrari and Lambo V12's make the hairs on the back of your neck stand up when you hear them in the flesh). Easy example: go on youtube listen to civics etc being driven hard and then listen to a few clips of BMW straight 6's and Alfa V6's being driven hard- they are incomparable (ANY 4cyl engine compared to it's 6 cylinder equivalent sound poor)
The big problem is all the hybrid/energy recovery systems being integrated. An enormous part of enjoying viewing these cars live is the emotional response they give you. Honest to goodness sorry for the polar bears DRS, Kers, hybrid motor setups etc need to be removed. It's Formula ONE not an economy rum for heaven's sake!