There's no way I would expect you to know this, but according to law the FCC must have a majority of Democratic Party-affiliated commissioners when a Democrat occupies the White House. Yes, Virginia, there is politics in Washington, DC and the Democratic National Committee is aware of the president's support of Title II.
AT&T has a terabyte cap on their 1 gig service, I'd expect Comcast to adopt something similar. It's not particularly meaningful to believe that the applications of tomorrow will be limited by any of the restrictions of the past (except Title II, of course.)
"Since then, the primary focus of Japanese ICT strategies (e-Japan II in 2003, IT New Reform Strategy in 2006, i-Japan Strategy 2015 in 2009, New Strategy in Information and Communications Technology in 2010, and Declaration to be the World's Most Advanced IT Nation in 2013) shifted from expanding broadband coverage to promoting its usage. Expanding broadband coverage to the nationwide market was mostly done by private initiatives, firstly of ADSL operators and then of FTTH providers. The MIC helped their businesses through interconnection rules, reducing access fees to existing network infrastructure, settling disputes among operators, and issuing direct orders if needed. It is important to note that, since the terms of local loop unbundling of fibers could not fully satisfy the need of competing providers, competition in the FTTH deployment is far less than ADSL’s. The main concern for unbundled fiber is that competitors cannot lease a single strand; instead, they have to use a bundle of eight strands even if they need only one strand. This makes it difficult for competitors to make profits in the fiber retail market. On the other hand, competitors can lease a single metal line from NTT-E/W; thus, they can offer competitive ADSL services in the retail market."
Like I said, if your regulator wants to move the nation from copper to fiber he regulates the hell out of copper and deregulates fiber.
I wrote a whole analysis of international broadband that cites the limits on unbundling in Japan, "G7 Broadband Dynamics: How policy affects broadband quality in powerhouse nations". The policy part is toward the end.
My POV of investment and regulation comes from comparing investment in mobile and wired broadband networks in the US vs. Europe. The picture is pretty stark.
In Europe, as in Asia, carriers are encouraged to build cable and fiber networks by deregulation. DSL is heavily regulated in those areas, but the faster networks are not. The fiber networks in Japan and Korea are effectively deregulated because unbundling requires the leasing of multiple strands of fiber at a time.
You claimed "telecom stocks actually rallied, suggesting Wall Street wasn't all that worried about the FCC's new rules".
I don't think any particular day's stock prices reflect Wall St reaction to a change in policy; it was anticipated, so some decline was already priced in, and the details weren't given for some weeks after Feb. 26th.
In any case, the stock performance of telecom firms has always been weak compared to the OTT firms like Google and Netflix, because broadband carrier profit margins - ROIC - are a fraction of OTT margins.