I get why people make gut statements like this, and to me something does feel different about AI.
But I realize I have not seen any criticisms of AI generated music that are meaningfully different from criticisms I've heard of other advances/changes in music technology, whether performance or recording.
Sampling, scratching, drum machines, autotune, electric guitars even.
The main unconsidered criticism that used to come from old-school musos was that 'you press a button and the synthesizer/drum machine/whatever does it all for you'... Only now is that perhaps coming to be true.
There's a difference between technology/technique that adds a new sonic palette to the canon, and one that takes away the necessity to have any direct input in the process of production. I guess we'll find out which this is if there's a wave of novel AI assisted genres that emerge, or not, as may be the case.
Well in "traditional" music production every individual component of a song has the creative intent of the artist in it. With AI you have no idea if there is any intent or if its just something an LLM spat out.
If all you care about is the raw sound file created and you don't care about the connection you might feel with the artist behind it then maybe intent isn't relevant to you.