Why is Beeline so easy to put on the shoulder blades?

I would like to know the thoughts of the Habrasoobshchestvo about this problem. For the second time, the entire network of the striped operator switches to the “connection error” mode or “the network is busy” for an indefinite period with any increase in load. Some people manage to get through with n times, I can't at all.
So what is the reason that the eggs and the megaphone work, and the striped ones do not?
Perhaps there is another way to solve the problem than changing the operator?