Specifically, what you quoted says leaving your
first job quickly. Obviously, "quickly" is industry-specific and the difference is in the results you produce.
In something like a biomedical lab, as a first job fresh out of university you're likely going to be something of a lab assistant, doing grunt work as you learn the ropes and work with an experienced team who has been doing this for decades. The accomplishments section of that job are likely going to be incidental with things such as "improved accuracy of testing by 58% in the first three months; reduced sample contamination from an average 1 in 23 to a notable 1 in 287 through an innovative workflow" (and bonus points if you translate that into specific business value such as cutting trial times by 9 months with an estimated savings of $15M). Nothing to sneeze at, of course, but you barely got your feet wet and any job you move to is going to be more of the same.
In a software startup, you can be doing anything and everything as a first job and, if you're an accomplished hacker with passion and have been building things in your spare time, your accomplishments will have a lot of incidentals but will be overshadowed by things such as building the product from scratch, launching it, and scaling the production environment to handle 10M paying users with peaks of 50K simultaneous users. Switching jobs at that point can be chalked up to "did something awesome, handed the project off to an experienced team for continued development, and looking for the next challenge".
Of course, there's still something to be said for being tenacious and fighting through the drudgery of ongoing maintenance. It's amazing how much you learn about how you ought to have built something when you are required to continue to grow and iterate on what you built. It's not something that someone will necessarily learn as part of their first job unless they stay with it for a while.