Raphinha: 3 braces, 2 hat-tricks.
Yamal: 3 braces.
Fermín: 1 brace.
That's 20 goals from multi-goal games alone, 8 matches into the season. More than Barça managed at this stage even with Messi, Suárez, and Neymar all on the same pitch.
Numbers like that don't need an opinion attached. They speak on their own.