Earlier quoted context omitted.
Also unclear how it works for the PhD pipeline. If you roll straight from bachelor's to a doctorate program - you have abysmal earnings for the next 5-6 years of your life.
Unless a program has a habit of sending the majority of its undergrads into PhDs, that part might not be so hard to resolve -- just exclude everyone who does that from the measurement sample.
The govt? In this era of open hostility to institutions that won't toe the line? Who are looking for ways to punish what they don't like?
Or perhaps the college? If they decide then can they pick and choose who goes into what statistic? Does a drop-out (like say Bill Gates) get included or excluded?
Do we even accept the premise, that education's sole goal is higher salaries?
This whole rule is performative. It merely gives power to the powerful to exercise in whatever way they like.