How disrupting is the use of blockchain for university resources?
The linked article is idiotic. This is an obvious application of digital signatures, not blockchains. The article dismisses digital signatures:


  The problem with using Adobe and Certificate Authorities (CAs) is that there are multiple points of failure - if a bad actor can fool a CA, then he can produce PDFs that look like they were signed by a university, but are in fact forgeries. Plus, the system is expensive and inflexible because it only works for PDFs


Only someone with zero understanding of cryptography would think that digital signatures only work with PDF files or can only be done using a particular piece of software from Adobe. The relevant technology is old, not patent-encumbered, and available in a huge number of free and open-source implementations.

Fooling a competent CA is probably much, much harder than fooling a university. But if some university feels somehow that they are more trustworthy than a CA, they can simply generate their own public/private key pairs.