Apparently this was an argument brought up back in 2014 as well[1]. While it focuses more on TV and porn instead of phones and 4chan, in the end the FCC only managed to actually use this power via the nature of the medium (since TV uses spectrum). The only internet that could fall under this is mobile internet, which already doesn't fall under net neutrality (since a lot of carriers have been introducing zero-rating for plans for awhile now without resistance).
[1]https://www.techdirt.com/articles/20140623/07052927656/rep-i...