Indeed there is a big difference between warranted sharing and unwarranted sharing. The Snowden leaks are not about warranted sharing. There is no controversy over warranted sharing. You only muddy the waters to bring that up. It’s wholly irrelevant unless you are still actually claiming that the only sharing going on is warranted, which again is severely out of touch. You’ve not been paying attention to the Schneiere blogs. You should read them before discussing this topic. There are dozens of ways the unwarranted sharing occurs between intel agencies and tech giants, from simply buying the data commercially to backroom deals to inteligence insiders to outright malicious hacking exfiltration (which sometimes includes paying or pursuading the tech giant to simply neglect to fix a bug that the exfiltration relies on) to intelligence agencies handing a box over to the tech giant saying “here, just plug this box in on your LAN and pretend it’s not there - ask no questions”. All of those methods have been detected and exposed. It’s all there; inform yourself; I’m not going to do your homework for you. The HOW is irrelevant to the mere point that the data sharing happens without a warrant.
Look through the repository you linked, it’s in there.