I love open source software, and I even like the GPL a fair amount.
Do I think this goes too far? Absolutely. The Free Software position is that the benefits of Free (libre) software outweigh all of the disadvantages, so anyone who chooses proprietary software has already made a big mistake.
Given that the mistake has been made, there's no particular advantage in castigating the manufacturer of that software for living up to the FSF's predictions. It's not a surprise, and the FSF is much better off pointing out that, sure, enough, they told you so, and it happened. Make a better choice next time. Here are some alternatives to help you out.
This is a tactical mistake.