Yep. Reid opened the door to tyranny.
You've got a damn sight more to worry about from the massive spying our gov't has been engaged in since after 9-11. Our country is spending 100s of Billions of dollars on private contractors who are collecting meta data on every aspect of all American citizens' lives, and you worry about something as silly as this filibuster rule?
Real tyranny is when the gov't (through private contractors, mind you) can track your whereabouts based on triangulating your cell phone calls (if not the phone itself), or your car GPS, or your Internet connections, or your credit card charges, and or your grocery store purchases and link it all together to know pretty much where you are and what you're doing all day, every day.
But you want to worry about the Senate rules?