I haven't come across accusations that pro-NN were systematically submitting fraudulently support comments to the FCC. Absent that, there's no "both sides" argument here.
The pro-NN were systematically publishing fraudlent, alarmist opinion pieces in the media. That the channel is different and more dignified (citizen feedback vs big-name publications) doesn't make it any better.
Anti-NN were doing the same, so on that account perhaps they're equally awful. But defrauding the democratic process of public commentary & input into the policy making decisions of a major governmental organization rises to quite a higher level.
"Investigators also found 9.3 million comments supporting net neutrality that used fictitious identities, most submitted by one California college student majoring in computer science."
Well, that's pretty awful, and I appreciate the counter point. However, I'd draw a distinction between the actions of a single person that don't equate to the large scale coordinated attacks of the same sort by Anti-NN groups.