I would love to live in a world where the FCC could update outdated regulation within 50 days in response to a random internet comment to a commissioner...but that's not this universe.
The parent comment doesn't say they think they're solely responsible, but just that it might have helped. Given the positive response from the commissioner who posted the AMA that they already supported it, I don't think it's unreasonable that it might have been a bit of a reminder or motivation to prioritize it a bit more.
https://docs.fcc.gov/public/attachments/FCC-16-96A1_Rcd.pdf
I would love to live in a world where the FCC could update outdated regulation within 50 days in response to a random internet comment to a commissioner...but that's not this universe.