Well, similar trends are happening in most fields, from engineering to bio research. And I believe the trend is occurring in most fields of medicine. As fields become more complicated and branch out, it becomes harder to be experts on everything. I mean, to give you an example, I bet there is a team of engineers at Apple whose sole purpose is to design the on/off switch.
It doesn't have to be boring as long as you find what you enjoy. My goal is to become an academic surgeon in a super specialized field, so I can master the subject and be able to push the field with research.