At the risk of turning this into a political thread, I'm all to familiar with the "rule making" process of government agencies.
"Clarifications" is simply a way for an agency to interpret a law as they see fit, circumventing the legislative and judicial process. Their 'rules' become twisted mutations of the 'law' which they then use at their discretion. The entire 'rule making' process is a farce. They 'publish' new rules, go through a public 'comment period' after which the rule in effect becomes 'law', often without any change despite input or opposition from citizens, industry groups and... petitions.
To say it is a lot of hoopla over nothing is burying your head in the sand.