The meme does not confuse Sync with Foss apps, it points out that Foss is the rule here rather then an exception and Sync stands out among the others like a sore thumb.

So its a very bad example to how things are run here.

Now a good argument against this meme i have seen is that you shouldn’t compare a Foss app with a non Foss app, oranges vs apples. But personalty i think all software should be Foss by principle (and many seem to agree here), so I am comparing software that is build using an ethical model vs software that is not.