I don't think such campaigns are bad in principle. But there is always a lot of waste, especially plastic, and a lot of duplicate figurines or glue ends up in the bin. Less would sometimes be more, always this total excess ... The farm action is all well and good, but again a lot of plastic, the horse can hardly stand so bad is the quality. Why not just offer 5 animals, but make them out of wood, good for the children and more sustainable. With a trading card or something... There is simply an abundance of plastic everywhere. Many children probably already have a nice wooden hutch at home, but the animals are far too small.
Please just think a little better about sustainability, the environment and children's health when doing things like this (animals are sure to end up in the mouths of smaller children from time to time, this cheap plastic is delicious).
The same with the plush bunnies. Every mother I know complains about the pile of stuffed animals that vegetate in their rooms and gather dust... And you always do the same thing with the dust catchers that are interesting for 2 hours and then disappear in a drawer somewhere...