It does not surprise me in the least that the executive branch of a state (which includes the AG's office) is supporting net neutrality at the federal level while the legislative is passing state-level laws to hamstring it.
I live in one of these states with bans on municipal broadband, NC. The relationship between our Republican super-majority General Assembly and our Democrat governor is completely dysfunctional, and our districts are so gerrymandered that we, the people, can't fix it. Republicans in the GA have been calling special sessions all summer to override the governor's vetoes. The GA recently put several state constitutional amendments up for referendum in November, aimed squarely at stripping the governor of more powers (something no one ever mentioned during our last Republican governor's term.) This is not going to change any time soon (see: gerrymandering.)
Our AG suing the fed is literally our only option to block most of the madness happening at the federal level (until the Supreme court rules on partisan gerrymandering,) because our legislative branch no longer works for the people, they simply push party and lobbyist agendas at all costs.
I wonder how many of those states made laws forbidding or working against municipal broadband.