All music could be traced back to something 5000 years or more...that's a useless argument...we're not discussing music history. But when discussing the qualities of current music, bands, etc., it boils down to the fact that it's just alot of derivation. And l'm talking current bands that are derivative of current bands. Most out there scream..."copies" & "generic". Actually...there is very little out there that can be deemed original or distinctive. So when the term "generic" is used...well hell that can pretty much be tagged on it all. To use it is pointless.
It's just a matter of what you like to listen to. I like Yngwie Malmsteen & I like Dream Theater...so I like Symphony X.