I'm not sure.

Complexity is clearly hired by lobbyists all the time, but uncertainty and ambiguity seem to me to be mostly caused by incompetence. It's not even clear if uncertainty benefits incumbents more; it can just as likely destroy a market or benefit new entrants, and you can't predict which will happen at the time you create it (otherwise it's not uncertain).

Legislative houses need technocratic QA. And that QA needs to be independent from the law-writing process.