I don't see how this authoritarian/paternalistic stance is ever going to work to be honest. I think the The DORs and Head Coaches are a just going to keep triggering the unions and World Rugby because they know the psychological edge they gain from the 'us against them mentality' that the disciplinary action and public admonishments of their coaches creates . Look how effective that kind of mentality was for SA in the Lions series, and Quins last year in the prem. Cynical, but it's the reality now I think. Teams will do whatever it takes to find an edge.
That's not to say they don't have a point in my view. For me the consistency, general standard, level of professionalism and general culture surrounding officiating and the administration side of things in rugby is shocking. The nature of the game seems to generate a lot of gray areas, but there is sooooo much low hanging fruit they just refuse to take ( 5 second rule, timewasting in games, water-boys, scrum contest criteria, formalization of absolutely basic concepts like grounding, forward pass, etc.) with direct consequences for the quality of the sport, and additionally player safety as many of these no-brainers also incentivize aerobic fitness and thus smaller players. Fuzziness can only explain so much here.