> but the bigger problem is the tendency of third party integrations having default settings

It's certainly a problem, but the biggest problem is simply that Backblaze doesn't need to integrate Facebook pixel to their web interface, especially when users are logged in.

There is absolutely zero benefit to this for their users, but I also fail to see what it could bring to them as a company??

They have now created a major PR problem for themselves, and what did they get in exchange?

(Ok, as the saying goes, there's no such thing as bad publicity. But still.)