Really cool! I wish more universities included this sort of training during their undergraduate ECE programs.
Also worth noting (didn't see this mentioned in the article, and maybe this is obvious...), it is usually wise to make your prototype on a breadboard/perfboard first, before ever printing a run of PCBs. This is especially true if your board is interacting with other parts of a system (E.G. you are building a power board for a robot). This let's you get a proof a concept working right away, and helps ensure no unexpected integration problems crop up that might call for a redesign.
Making a breadboard prototype used to be common practice, but with a lot of new technology it's often not possible anymore. High frequencies requires small tolerances. Luckily, getting a pcb prototype made, isn't as expensive as it used to be.
Not to mention that most interesting parts just don't come in through-hole packages, and the time it takes to wire up anything even remotely complicated. Yes, there are some prototyping boards that have various SMD package footprints, but PCBs fabrication is generally cheap and fast enough now that it's not really worth the time anyway if you're reasonably sure everything works in theory.
If you have a similar board you might make changes to it, or you might wire together some breakout boards. But in my professional experience, it's rare for anyone to use breadboards or perfboard, especially in the last decade or so since SMT became standard and PCBs became so quick and cheap.
Also worth noting (didn't see this mentioned in the article, and maybe this is obvious...), it is usually wise to make your prototype on a breadboard/perfboard first, before ever printing a run of PCBs. This is especially true if your board is interacting with other parts of a system (E.G. you are building a power board for a robot). This let's you get a proof a concept working right away, and helps ensure no unexpected integration problems crop up that might call for a redesign.