Asking blockchain to solve those problems is a bit ridiculous. Those are problems that need to be solved in any system, and are solved enough in many today. For starters, its not hard to archive your signing keys somewhere safe and public, especially on the blockchain - the group of Universities and employers who care about that validity will have some central organization in identifying that archive.
This is what the article demonstrates. All the value is in the trusted authorities issuing things, not the transaction record on a blockchain.
Trust is important and trustless transactions with pseudo anonymous entities are not worth much.
The blockchain solves the last two, but if your conception of them is as a magical technology that can solve every issue by virtue of hosting data then you're going to be a dissapointed simpleton.
Your core issue is that colleges are a centralized institution which decide who gets rewarded - that's what it boils down to when you say "all the value" is in trusted authorities issuing things. For starters that's a ridiculous assumption that trust is still necessary for value, but more importantly stating that blockchains are useless because they cannot replace colleges is disingenuous.
You have not demonstrated any added value, and the straw-man insults sprinkled with spelling mistakes do not help persuade.
It has thus failed at its original goal (a useful currency to rival state backed currencies).
That's a very interesting use case, but it's hard for me to see exactly how this can be made to work.
Suppose you study at the National University of Unstabilia, which is located in a disaster-prone and conflict-riven environment. You complete your B.A. there, and you get the NUU to record this fact on a public blockchain.
A few years later, things are really bad in Unstabilia, so you move to Belgium. After you arrive there, you tell someone (maybe a prospective employer?) "hey, I'm Joeri, I'm a refugee from Unstabilia, and I have a B.A. degree!". For some reason this person is skeptical, so you say "it's OK, just look up the blockchain record with the following hash!".
Sure enough, the public blockchain contains an entry reflecting that someone named Joeri did, indeed, earn a B.A. at NUU a few years back. This is great, because maybe
* Unstabilia City was mostly destroyed in an earthquake, making it hard to contact people there, and many of the people who would have known you during your studies have likely died or become refugees themselves; and
* Lately, the new NUU administration really hates your ethnic group, so much so that it prefers to deny that people of your ethnicity were just recently widely represented among its student body; and
* Many of NUU's records were previously lost in a fire; and
* Before that, someone reputedly hacked NUU's computer systems and stole all of their records, and probably all of their cryptographic keys.
But thanks to the blockchain records, your new Belgian friends can still confirm that you actually studied at NUU, right?
But, how do they know that that record is really from NUU? How do they know that NUU really exists? How do they know what its signing keys were, and how long they remained under the university administration's control? How do they know whether it's a legitimate university? And, maybe most significantly, how do they know that you're the same Joeri who earned that degree back in the day, as opposed to some other Joeri? Are these records including some kind of digitally signed biometrics?