I don't know if the actions of some companies justifies a distrust of ALL companies. Especially Valve which has been one of the few companies to "do no evil." I mean they are the company that not only made a drm scheme palatable, but enabling for the end user. They put out good, quality games that are, largely, worth the price they charge, and are released bug-free.
And if only for the ridiculous amounts of free stuff to TF2 customers, they should have garners SOME amount of respect and faith from the community. I, for one, enjoy their service and products, and don's see this as an issue AT ALL.
Personally I see questioning everything as a sign of being a good consumer. Valve has earned my trust, so far, but that can change at any moment. I trusted Epic for a while too and Crytek. Companies can and do change. Its worth asking "where can this lead" and "are they going to be allowing publishers access to this". Its also worth saying "keep an eye on this and see where it goes".