This is true with some caveats. "The judiciary" can overturn a decision in some cases. See [0] for a very detailed explaination. Comments to the FCC do MATTER. If half of America says that Net-Neutrality is good and then it gets repealed, then the judicial branch can accept a case examining the decision. Or something, IANAL, but the the dude who wrote [0] is.

Specifically, the paragraph which starts with "Another way they'll drop their deference" is roughly the section which covers the caveats.

[0] - https://www.reddit.com/r/politics/comments/6x0bdy/985_of_uni...