Thats extreeme metal elitism, but you also prooved the usefulness of genres. How else, without using genres, would you describe that german band as efficiently as you did so someone like me can understand it and say:
Sounds awesome, whats their name?
What about finding a band?
Even if she is still a very begginer I’ve seen that playing in a band can help you improve faster and learn other skills necessary as a musician (specially for drummers imo) also I made my best friendships and had the most fun while playing in a band.
PS: In case you havent done it; swapping the drum heads for good “brand name” ones can really improove a cheap drumkit, that and new cymbals (cymbals are the weakest part on any cheap drumkit).