Maybe I should have worded it better.
DIR has had a massively positive impact upon technical diving and has undoubtedly saved many lives. Some of the agencies, including GUE, have set high standards for which many divers aspire.
Alas the zealotry DIR brought did it no favours, especially those that promoted the one-size-fits-all regardless of other factors. Many of these people have now wound their necks in, although there's a lot of people who prefer the tighter standards definitions.
The other agencies have caught up. Technology has massively improved. Knowledge has improved. Teaching techniques have improved.
Some of the principles of DIR are well and truly mainstream. Other principles aren't as needed as per 30 years ago and DIR-compliance in many cases is optional (longhoses, all stages left, etc.) -- but the core DIR principles of a well thought through system is still stressed; but adapted to the underlying technology (e.g. sidemount, myriad rebreather configs, etc.)