That's a good pellet for now. Both mom and babies need the higher protein and calcium in young rabbit pellets. If the mom is still nursing all those babies, she needs a lot of food. She should pretty much have pellets and grass hay free fed. The babies should be gradually starting to eat more of mom's food as well, as they get older.
Baby rabbit diet
At 8-10 weeks old, when her babies are weaned off of her, then mom can be gradually transitioned over a couple of weeks time, to a grass based adult pellet like the garden select adult rabbit food, or another good quality grass based pellet. The babies should be kept on the young rabbit pellets and free fed grass hay still, after they've been weaned and separated from mom. If these aren't a large breed rabbit, the babies when 5-6 months old, can also be transitioned onto the adult rabbit food.
https://rabbitsindoors.weebly.com/feeding.html
https://rabbitsindoors.weebly.com/pellet-food.html