Worldwide???
99% of what Bloomberg terminals are useful for can easily be replicated in multiple data centers. Why not, at a minimum, three separate regions, e.g. Asia, Europe, America?
These terminals lease for $24,000 a year. No discount for multiple terminals. I wouldn't be surprised if a single big investment bank pays $50 million a year to Bloomberg for its terminals. Michael Bloomberg is a billionaire. Surely the company can throw a few crumbs into some redundant data centers and availability zones.
And if it's down because of a botched worldwide software update, the people responsible should be immediately walked out the door and told "you're too f*ing stupid to work here any more".
IMO.
Sorry to be so dramatic. But the financial world depends on these terminals (for better or for worse). They have a right to expect unrealistic reliability.