I kinda felt like Allu was only really world class on mirage, on other maps he kinda didn't really perform with the best awpers. Guardian might rely on the AWP a bit more than most but I feel that it's not really going to harm FaZe, they have Niko who is one of the best riflers/players around at the moment and Rain is incredibly reliable too.
Having said that they were really doing well before the major, I kinda feel like having a roster that sticks together and works out the issues instead of just replacing them is a lot better. But with the money going around in CSGO I guess that isn't much of an option for many.