I don't know if it mattered, but the comments as shown in the article are pretty much the same copy with various simple replacements for many phrases. This happens in lots of spam campaigns. I'm not sure anyone spent much time doing it - could be few hours for someone who does spam already. It doesn't look like a sophisticated or costly action.
I wasn't planning to, since we can't answer this without knowing who did it.
My point was just to provide context for "spent time". It wasn't some huge operation. It could've been one day for one person. At that point the cost is so low it could've been done for the lulz. Or it could've been a cheap case of foreign groups trying to achieve something. Who knows.
Just because I have good reason to believe it never mattered, that doesn't mean that everyone agrees with me. Even then, people spend significant amounts of time on things that don't matter (see also: social media, entertainment, etc.).
Given that spamming a comment form is a few lines of Perl - http://search.cpan.org/dist/libwww-perl/lwpcook.pod - the idea that some nut might spend 30 seconds ordering their computer to spam the FCC does not strike me as farfetched, nor does it seem reasonable to waste time caring about that.
Better to focus our efforts on lobbying the FCC to change this boneheaded decision. Frankly, I think the point that they don't care about our comments to begin with is more damning than whether or not an idiot spammed a comment box.
