Google used to support openness, and now it is being less open, and therefore less "good". A step in a direction that is less "good" is a step towards "evil". It's not unreasonable to say that Google is being more evil.
It's not a stretch to say that Google can't be trusted not to be evil if they've moved in a more evil (or less good) direction.
I think you're applying a a value judgement to a technical issue. "Open" pertains to the nature of certain software and standard. It's not inherently good or evil; you're just choosing to assign that value based on how it correlates with the world you'd like to see. I'd prefer things be more open too, but I don't agree that being less open is somehow inherently "more evil." You can have an entirely non-open company that's totally "good" - good/evil is about the actions of the company, not the wording of its license.
I don't consider closed-source software to be inherently evil. I do consider openness, transparency, et al to be inherently good, however, as these things are beneficial to the world at large. That doesn't mean that all alternatives are instantly evil or that openness is the One True Path.
I do consider a shift toward less openness to be inherently less good. I don't consider Google to suddenly be this evil company.
Google is, however, to be a very powerful company (and therefore a very dangerous company by nature), and a moral regression in policy is certainly an unnerving thing to see. I love a lot of things Google has done. I love a lot of their products, projects, practices, etc. I just can't consider Google to be a safe place.
It's a way of framing an argument that discourages rational discussion of the actual merits of each side. It's not whether or not I agree with that value judgement that matters; it's that assigning those kinds of judgement is often a way to preclude any deeper or more nuanced discussion.
Google supports openness just fine and not statistically less than yesterday or n-days ago: https://code.google.com/hosting/search?q=label:google. Regardless, I'm dubious to believe having closed software makes one evil; just the same for discontinuing a product. Three steps forward; one step backwards; not evil, even by your ridiculous terms.