However, modern stocks disguise themselves quite well, so that such a pattern is not always easy to see while it is forming.
Only in hindsight will you realize what it actually was.
As if I did not know that. ;-) Well, let's say, for lack of a better term, I still call them Head-and-Shoulders here, because that's what they essentially are.
In my understanding of the contemporary stock market analysis, one should not set any dogmatic rules from the textbooks of the 1960s, which obscure the view of the most important. You mustn't take a too narrow view of contemporary stock exchange. The appearance of curves has also changed dramatically with the advent of computer and algorithmic stock trading in the new millennium. Many of the textbooks with their rigid rules on Elliott Waves and stuff are simply no longer true. You need to open your eyes, observe the real world market behavior, take notice, embrace the changes and try to learn from them to move forward. An ancient Latin saying goes, "Tempora mutantur, nos et mutamur in illis," - The times are changing, and we are changing with them.