I think that as time has passed, the meaning of the DS role has evolved as well. Eventually, stakeholders want a product that works. That hasn't changed. The tools however have changed dramatically. I think that as in other fields of study, where you have to obtain a PhD just to understand the jargon, the DS field experienced the same phenomenon. Yes, it is an industry-biased role, meaning that you don't really have to have a PhD to get hired, but yes, you definitely have to know more than the average DS from a few years ago.
I think that as time has passed, the meaning of the DS role has evolved as well. Eventually, stakeholders want a product that works. That hasn't changed. The tools however have changed dramatically. I think that as in other fields of study, where you have to obtain a PhD just to understand the jargon, the DS field experienced the same phenomenon. Yes, it is an industry-biased role, meaning that you don't really have to have a PhD to get hired, but yes, you definitely have to know more than the average DS from a few years ago.