It is perhaps not, and perhaps a bit disingenuous to claim so in good faith, as if it exceeds your abilities to search for the list of facebook scandals in the decades following and see that the behavior is often consistent with this quote. Even if you choose to ignore all that, it's also not very reasonable to expect troves of juicier quotes after all the C-suites, lawyers, and HR departments showed up locked everything down with corporate speak. I'm sure if facebook were to be so kind as to leak all the messages and audio of zuck's internal comms since that time people would be able to have many other juicy quotes to work with.
It is often referenced because it's the best quote that represents the trailblazing era of preying on users' undying thirst for convenience in order to package their private data as a product.