Yes the floor and vault squad will be a lower level of competition, we call it Gymnastics For All in my region and it will be difficult, not impossible, but difficult to keep up with the gymnasts already training 4 pieces of apparatus to the level required for the grades pathway.
It really depends on what your daughter wants, there is no right or wrong answer to this. If she just wants to compete, wouldn't miss bars and beam too much and doesn't mind which pathway then stay put. If she has her heart set on artistic gymnastics and the grades pathway give the other gym a go.