> If they had less than 100 cases where the system initially failed and the issues got resolved within a few hours I'd bet they would brag about it.

That's a bit of a straw man though isn't it — could there ever have been as few as a hundred problems in a system of this complexity with four million users?

(It also moves away from your "hundred million people" somewhat does it not?)

I am sure it has not been a flawless rollout but I don't really understand the outrage here.

It's worth understanding that much of the news media coverage of this is tinged with anger, regret and disappointment: this is a system we would not have needed in this formulation if we had not done Brexit.

Small problems with existing immigration and border systems would not have made any news but they could also have been happening at a higher rate, yes?

We shouldn't have done Brexit, but we do need a system, and therefore we have a system that is less joined-up than it could be.