And ignoring second-order effects: People harmed because of the results of the fire.
The second group of people is not less important than the first.
Sorry but I can't relate to this type of tragedy at all. I can relate to someone getting hacked and losing their business or customer information though. That pain I can imagine. And to hear someone say to me "that's sad" about the latter when knowing they don't have any idea what it is really like to me is just lip service and almost patronizing.
But you don't have to go around saying "LaLaLa I don't feel sad." Just don't say anything.
This was a major part of a charitable initiative to bring free internet access to Africa.. That's a lot of lost opportunity for business, education, health care..
From a technical perspective, the laser-based communications network being developed by FB for Africa is super cool. I'm sad to see this delayed. Even though it doesn't affect me directly, it hits my inner nerd right in the feels.
Sure, it will delay some things in Africa, but we can't easily say whether that delay will be good or bad. For all we know people will be better off due to the delay as it may be less disruptive of existing economic structures, notwithstanding their long-term inefficiency. You're assuming incorrectly that the consequences of this satellite deployment would have been all upside and no downside, but such effects are not reliably quantifiable.