Straw man. Facebook is a company whose purpose it is to make money by offering social connections. The fact that Facebook does this by having a network presence is coincidental -- the network aspect of Facebook's business is a means to an end, and the means could be something else with no change in the company's goals.
In principle, Facebook could accomplish its ends with two cans and a string across the back fence. Different technology, same goal.
> But the universe isn't a technology because...
Do try to think this through.
Facebook is a tool designed and built to solve a set of problems. If that is not technology in a core sense, I don't know what is.
Facebook's purpose (sell social connections) and its method (networking) are distinct and separate. Facebook could accomplish its objectives in any number of ways -- networking is coincidental to the company's purpose.