"Mr. <webservice-ceo> Does your company offer a backdoor for the government? It looks like it, even though you have declared that there was no backdoor just a few weeks ago!" - "Uhm. Not wittingly!"
That's like accusing AT&T of having a backdoor because your apartment has thin walls and someone could overhear. Or that your ISP has a backdoor because your WiFi isn't encrypted.
The FBI was doing this decades ago with Carnivore. Why is it at all surprising that such a program continues to collect unencrypted information you sent over the Internet?