There has been a lot of back and fourth about RD "dying" lately due to some EU crackdowns (which are frankly incredibly dubious to my legal mind, but complaining about governments being illogical is like complaining that a brick wall is hard) but one thing I haven't really seen anyone talking about is what made RD so special in the first place. Personally I've never used any debrid service and just took the hard drive hit to download everything locally, so is there something special that RD did that other alternatives don't?
Obviously this isn't "the death of piracy" or anything, but with all of the commotion I imagine there must be something special about RD that I'm just not grasping. (if RD wasn't anything special compared to it's alternatives, then I can't see why this would be anything beyond "well that sucks, I have to switch to an alternative now". Even to people who used RD it seems like it'd be hardly more than an inconvenience)
So to a non-debrid user, what made/makes RD special compared to alternatives? (such as All-Debrid)