Rulemaking before the FCC heretofore has been in the form of a petition for a rulemaking, with a period of time for public comment to be made and placed in the administrative record, before any decision is made.
It doesn't take 300+ pages of regulation to accomplish the stated goal of net neutrality, which is likely disinformation or outright misinformation. This could be done in a dozen pages or so, including any definitions that may be necessary.
It also certainly doesn't have to be done in secret. Of course, anyone with a lick of sense knows it is secret only from the plebes - the special interests will be all on board and will have largely written this behemoth.
When Obamacare came along, it wasn't the evil insurance companies that got screwed, it was the little guy. How anyone can think this is anything other than an enormous power grab at the expense of freedom and the little guy is quite beyond me.
So the internet will be regulated like power companies and landline phones. How very reassuring. The power grid is inadequate for modern needs and unable to meet capacity in many places. It is subject to hack attacks and other disruptions, natural and adversarial. It can't even handle a handful of electric cars for crying out loud. There has been no technology improvement in land line phones in decades - why should anyone invest money in doing so - the internet offered more opportunity and return on investment than an overregulated model based on twisted pairs.
Oh, well. I still have my ham radios.
edit: with respect to the power grid, look at how incredibly difficult modern "regulation" has made it to bring new sources of power online, or even keep disfavored sources of power online. Regulation of the internet will protect some of what is there now, that which finds favor with the regulators, and block or obstruct everything else. New capacity will be non existent - why would the established companies want the competition, and the regulators will make sure they don't have it - all while being guaranteed a profit, as all regulated utilities are.