Does the internet always have to throw a fit every time a company tries to add a little monetization to what is an essentially free service?
The community is expressing a desire for companies to be be honest and upfront about these sorts of issues (i.e., monetization). Refer to the post you responded to for more information.
The guys who act like "it's only about the lies" are usually not decision makers, but it's important to be able to have enough a story that the decision makers don't get their thoughts contaminated by the perennially negative.
I think Docker will be fine with what they're doing. This is a storm in a teacup. But they should've bundled it with other features like auto-updates or something.