Yeah, that is true. The article was specifically about the Secret Service. There is another bill running through the legislature right now to give the DoD cops at Fort Carson state police powers as well. In the statute, other federal Agents have been given state police powers already. It really is a non-issue, but I would be hard pressed to convince you of that.
I would wholeheartedly agree there is too many federal employees and too many federal law enforcement under each of the IG offices of EVERY federal agency. They need to consolidate and shrink or require the FBI to take over their investigative duties without an increase in manpower and do away with the IG offices. I agree completely. Is it going to happen? No.