Think about how many times critical infrastructure on Hive has just failed and websites were down
Websites going down isn't a critical Hive infrastructure, usually it's related to API nodes having troubles
When popular API node fails, its traffic is often redirected to other popular API node
which isn't best way to do, because it should be solved at client side (i.e. by changing API node that client is using)
Well, from user perspective it might actually look like it is, since they are cut out of interaction with the blockchain when that happens.