My point is that "regulation" isn't a monotonous scale from "more/better" to "less/worse". The quote and link does not at all answer my questions; what regulations did he work for as a lobbyist, and why?

Industry incumbents frequently use lobbyists to create regulation to raise the bar to entry in their field, cementing their own position and stifling competition - creating the kinds of complacent mono/doupolies that we know so well from cable companies and ISPs.