Although i acknowledge that this statement is there merely to stimulate discussion, let's look at the facts here. Of all the bands that I know of that are even remotely DLA affiliated (Into Oblivion, Averse Sefira, Wulfgravf, many other "bedroom" recordings by (ex-)users) nothing of outstanding quality has ever been released. Into Oblivions has an appreciable approach, yet they fail to make something truly majestic out of it. Averse Sefira is competent, sure, but I have found that they don't have much to offer beyond this competence; they pale in comparison with the top-tier stuff. Wulfgravf and the bedroom projects showcase an admirable array of neat ideas without managing to create something truly worthwhile. We must remember that the creation of the several masterpieces of the 80's and 90's were largely done out of natural impulses and an interest towards the more "heavy" aspects of existence, rather than a set of ideals or artistic principles. It can be thoroughly supported that genius in metal is mostly accidental.
On a theoretical level however, it could be said that this statement is almost irrefutably true. Embracing the values upheld by the DLA (quantity > quality, composition just as or even more important than aesthetics, Philosophy in art etc.), would equate with artists being more wary and inclined to go in-depth with their work, most probably eliminating the contemporarily persisting trends of laziness and superficiality. These values would also most likely alienate the masses, thus forcing them to turn elsewhere for their entertainment.
The above could be expanded upon to a great degree, but this is all that I can contribute as of now.