I do enjoy live music too ... but even in the day I have to say that there were a lot of bands that were great on records and somewhat lacking live. Now the gap has just widened a bit. I'm sure that people said the same thing about the electric guitar, the multitrack recorder, etc etc. I hear what you're saying though, but thankfully most of this silliness is restricted to pop type material, which I've never been a big fan of anyway
There are still lots of good musicians out there though, but also consider that even the best musician is at the mercy of the engineer that's recording their material.
I'm sure all the real artists said the same thing when paint-by-numbers came out
Music-by-numbers is still thriving unfortunately. Maybe it will be a fad too ...