For a Masters program it's pretty weird but I assume prospective students will be aware, and they move on to learning Unreal, so... It's always struck me as a bit silly how so many schools use some very niche tooling as part of "simplifying" or "adding constraints". I would have thought that such stuff was kept at the undergrad level. Even DigiPen (where the "famous" undergrad CS-like degree has you writing your own…
As I said however, it depends on when in the timeline we’re looking. For 3-year bachelor’s programmes, there’s significantly more focus on producing graduates who can move straight into the industry, having already learnt the tools they will use. For theoretical 5-year master’s programmes, knowing specific hardware or software is secondary to the general reasoning, maths and planning that’s expected in research or R&D industry work.
Using more limited or restricted tools, if thought out well, can force students focus on the parts that matter. I haven’t actually used the Playdate, but for first-year students I would think the most important thing is to actually get to designing games. The core ideas you’d want to teach do not require fancy graphics or platform support, rather, that’d just be a time sink. Learning industry tools can be done in later courses or on the job. While being able to work efficiently is important - I don’t want to discredit the handiwork of the process, learning what buttons to push in eg. Unreal is arguably much less ephemeral than learning ”game design”.
However, using limited tools in teaching must be well motivated. Forcing old, obsolete tech onto students might be a learning experience just as well as a time sink.