I am most defintly not a fan of theirs but good for them. Sometimes ladies it's not what you know, it's you who know, and they knew the right people. Or well the right people found them who knows.
They're not the only gurus who've done Fashion Week. I'm about 90% sure Michelle Phan did it last year.
We can speculate why are the mediocre "gurus" getting all the attention, and why not the talented ones, but guess what? The actual makeup artists on YT actually HAVE jobs, they HAVE gigs.
I'm not spending my time worrying about what the sisters do, it's not affecting my pockets at all so I don't really care.
I must say that the majority of their audience are pre teens, and that's why they're so popular, kids that age need a "role model"
Look at Miley Cyrus.