Within last week I have seen more sprint cancellations than ever before :)
It’s a good thing. Canceling a sprint is responding to change. If things change enough you need to adjust and what a better way than starting all over. We may have some problems because we have to synchronize our sprints with so many teams in order to enable stakeholders to attend as many sprint endings as possible.
Canceling sprints obviously has effect on our history data and we have to be careful when reflecting on the past.