It probably refers to digital design education, not software development education.
And it does seem like universities are rapidly starting to adopt the ISA for that purpose. A few years ago, those classes would use a custom instruction set written by a professor, or maybe a simple proprietary ISA like MSP430. I don't think ARM was very common.
For example, MIT used to teach computer design with an arbitrary CPU that they called "beta". Now they use RISC-V.
And it does seem like universities are rapidly starting to adopt the ISA for that purpose. A few years ago, those classes would use a custom instruction set written by a professor, or maybe a simple proprietary ISA like MSP430. I don't think ARM was very common.
For example, MIT used to teach computer design with an arbitrary CPU that they called "beta". Now they use RISC-V.
https://computationstructures.org/notes/pdfs/beta.pdf
https://6004.mit.edu/web/fall20/schedule