You could take that one step further. CS has, in it's modern incarnation, only been around for ~90 years. CS, as it is taught at the undergraduate level, has changed dramatically in recent years, and will continue into the future.
Math, on the other hand, has been around for thousands of years, is relatively stable, and unlikely to become obsolete in the way a scrum certification, or even a machine learning algorithm, will.
Of course, 'CS fundamentals' usually end up at a very close intersection with math. I'm just suggesting that mathematics has an even deeper level of the 'stability' you referenced.
Math, on the other hand, has been around for thousands of years, is relatively stable, and unlikely to become obsolete in the way a scrum certification, or even a machine learning algorithm, will.
Of course, 'CS fundamentals' usually end up at a very close intersection with math. I'm just suggesting that mathematics has an even deeper level of the 'stability' you referenced.