From the article:
The company estimates Amazon’s current spending has spurred an $8.2 billion contribution to the commonwealth’s gross domestic product
So that is probably a closer figure to their local spending. Those electric bills do in theory lead to more robust utilities because the large baseline-style load make transient loads like residential HVAC and appliances look like smaller variances relative to the system capacity and because the increased size/revenue of the grid justifies improvements like more resilient transmission lines
Since when is Jerboa the “official Lemmy app”? It’s not even the only FOSS app and I’m not aware of any connection between the Jerboa and Lemmy developers, let alone the various admins of the lemmy communities that Jerboa accesses. Use a different app if Jerboa isn’t working for you
Edit: I was wrong, just looked at github and it looks like there is an affiliation between lemmy developers and Jerboa. But it’s still not the official app of any of the instances, so it’s not like Reddit where the devs and admins are the same entity