Concerning BDM: It's the same over and over again...not!

Several reviews on Metal Archives, blogs, reviews of some silly music journalists or wanna-be critics or  statements of people in general are constantly rattleing my cage. The statement that bands which don't invent something completely new or don't do something that hasn't been done before by another band, aren't good at all. Typical phrases of such people are: 'I didn't like that band because they just copied Suffocation/Devourment/or any other influental over ground band., or 'That band ain't good cause it's the same Chug, chug, grunt, grunt, squeal over and over again.'
I absolutely can't understand these people. Here is why. Discuss with me if you want.
The music I love the most is Brutal Death Metal and I love the music of bands that play this style. There is a huge underground which I like to discover with thousands of bands that create brutal and awesome music. And 99% of the bands have their very own and unique sound. Oh yes they do. Of course they are not inventing something completely new and yes they do sound similar to other bands of the genre but that's just because it is the same fucking genre. When I listen to a new band I've discovered I don't think about what they're doing new or adding to the BDM style because that's not what I want. I want Brutal Death Metal and I don't want some progressive bullshit in that because it's mostly so forced and just sounds awful. I like a band for the music they create and I don't constantly try to compare their music to a hand full of bands of which I think that they invented a fucking style of riffing or a vocal style and are legends in the scene. Actually a lot of these well-known bands are completely over-rated and dealt with as if they actually represented a whole genre.
Every band is different and to constantly dismiss the thousands of underground bands which create awesome music and create their very own Brutal Death sound (of course you won't hear that if you just listen to one song a couple of minutes and then just throw it away) just because you are too lazy to search it and just because you want some grand label to put the stuff in front of you and you want to listen to the same hand full of 'classic' records all the time, is something I never will understand.
People with this attitude are everything, but not supporters of the underground or even true music lovers.
They don't support the bands that may not be so known and may 'copy' another band but create awesome songs, but the ones that were the first to play a damn style and simply have better marketing schemes.
I oftenly prefer some underground band with 300 listeners on lastfm to Suffocation with 100.000 listeners on lastfm (just for comparison). Not because I don't like Suffocation but because I simple think that a certain band creates better songs and music than Suffocation (just an example).
I think it's time to be curious, listen closely to unknown sonic treasures that may exist and to support the underground for the underground is the blood of Brutal Death Metal.
Thank you.