I'm not so sure there is less craft now than before. Working in the field of finance has thought me there's such a thing as a survivorship bias. We tend to forget the failures of the past, and remember the things that have lasted. In terms of filmmaking we remember the classics, but if I were to ask you what the worst films were of 1952, 1963 or 1977, I doubt anyone will remember. When we ask people about the great ones I'm sure most people could name a few. As we look further to the past, the ratio of good films over bad or mediocre films we remember tends to increase, giving us a false idea that there were relatively more great films during those days than there are now.