This is rather written in the perspective of "shame on google for removing these API keys", but it feels to me that this should be a (small, incomplete, but still a) win for open source; if I want to run an open source, free browser, I don't want it phoning home to Google every day.
There's a separate problem in that Chromium isn't capable of any other ways of more freely and openly syncing the things it used to sync to Google's servers. But when thinking about any open source software, I feel that its important to separate "things it does which I don't want it to do" and "things I wish it did". In other words, code which was written that doesn't serve the users' interests, and code which could serve the users' interests if it were written. I don't believe its productive to worry or complain about the latter; its more productive to just write it, file feature requests, etc. Of course, in Chromium's case, its unlikely they'd be accepted, but that's a separate, third issue.
I also disagree with the article's position that Firefox isn't a valid alternative. Firefox is somewhere within the range of 98% to 102% as good as Chrome, depending on the website you're visiting. By comparison, I would place Safari (the only other real alternate browser on any OS) at 92%-96%. Firefox is a fantastic browser which can absolutely replace Chrome/Chromium, and should be used by more people if for no other reason than to add more balance to the Big Three. Throw out the FOSS ideals for just a second; there are effectively three browsers left, and the most ideal marketshare for those three is 33% each, given that the primary long-term benefit and risk from marketshare is, at the end of the day, power toward influencing the future of the web. Power should be distributed, always.
And this is hardly contentious, but the industry need a 4th browser. I would rank this as the single most important project any company, group, or individual could commit productivity to at this time. Of course, important things are rarely easy, but to me, it doesn't even matter if its open or closed source; open source would be better, but what matters far more is distributing power further.