I guess a big WARNING banner might scare users away, but it's still a bit disturbing to see such a lax attitude towards tools which developers use to work with a software company's most valuable assets. A lot of people, developers included, don't really read EULAs, and it's the same reason (traditional) spyware could thrive: no doubt they all specify in their license agreements the fact that they all collect information, but approximately no one reads those.
Put it another way, would you want your compiler or other parts of your toolchain sending information about all the source files it processed? I wouldn't consider myself particularly paranoid when it comes to security, maybe even looser than the average on HN, and even then I wouldn't use such tools. I wonder how many companies have already banned their use...