How is this called?

This is called the domino effect.

Defined as: The domino effect is a chain reaction that occurs when a small change causes a similar change nearby, which then will cause another similar change, and so on in linear sequence. The term is best known as a mechanical effect, and is used as an analogy to a falling row of dominoes. It typically refers to a linked sequence of events where the time between successive events is relatively small. It can be used literally (an observed series of actual collisions) or metaphorically (causal linkages within systems such as global finance or politics) (from wikipedia)

And the question is: is this odd? Should we have not been expecting all this?

Repression, depression and extreme power in the hands of few, it doesn't take a genius to predict where all this is going...

Don't know where all this will end, the good case scenario says in a different world, the bad case scenario says in loads of death and no real change. One thing is however certain: the domino continues...