Well, it being pointless depends how you look at it. Nobody is saying, you need to be trained to fly a drone correctly and within the rules. What people do need to learn is how to follow the rules. They stated most of the people who broke the rules, were unaware of them. Sure, I could just say that to try and make myself look blameless, but I'm sure there were many people that are unaware of them. You might be lucky to get a information leaflet with your drone with the guidelines, or maybe on the website. But does everyone read them? I've bought many low cost syma drones, they didn't come with anything.
This would be a government exercise to make sure you've read those rules, ticked the boxes, back covered for when you do bad.
People who want to do bad still will, so in that perspective you can say it's pointless.
Expecting anyone to give training is a bit far fetched. I know DJI did offer a same day quick setup and introduction to the drones over in the US in certain cities. But yea I doubt you will ever see that as compulsory and there are many other drone products / companies out there apart from DJI.