You need to say this more clearly if you insist on keeping on saying it. The training now is much more extensive -- and safer -- than what we had way back when....but now it is broken up into bite-size pieces with no necessity to do all of it, just the parts that fit the kind of diving you intend to do. Yes, if you take only the initial piece, like OW, you have less training that we got back then....but it also only takes a few days instead of the several months our training took.
So the comparison of our training to today's training needs to include time and money spent on the training, and the extent to which the training is matched to the diving desires.
If someone today wants to do a night dive, I do think they ought to get some training in it. The OW class does not and cannot cover everything. Same with going deeper than 60 ft, or using a lift bag, or navigating a complex course....more training is needed to do it effectively and safely, and there is no problem with that UNLESS someone thinks their OW class is all they need in order to do anything they want. Then there is a problem...