Yes, I actually "grew up" with Kinder eggs, which is not too good given the poor chocolate quality, I am told.
But I had hundreds of their toys and they are indeed small and intricated. You would often lose parts in the effort to mount them. Over time, I guess this became a legal issue because they increase the parts size considerably.

Still, I too think it is a bit excessive to forbid them. Also because the inside toy comes in a fairly big yellow plasitc container (egg-shaped, sort of), which all kids would end up putting in their mouths, at some point. I did so, so so many times, and you definitely cannot swallow those things I think. I hope.

A lot of fun memories with Kinder Eggs...