Talent is relative. Some people might call their drummer talented because he can double-kick, but realistically that makes him run of the mill against a world full of thrash, death and black metal drummers. Listen to Flo Mournier, then come and tell me how fast the kid from Mendeed is.
You might find the vocals phenomenal, but to me they're the weakest part of the band, and certainly nothing worth shouting about.
As for the guitars, lets say that my idea of talent is Chuck Schuldiner, John Levasseur and James Malone.
You're not going to convince people who love extreme metal that Mendeed are anything above average in talent. That sort of music can only impress people who haven't heard much more impressive stuff.