HN user
I think the best course of action is to still do the interviews, but ask the potential employer for a late start date. Personally I took about 4 months off after I finished classes. I arranged the start date of my job to be early September (I finished classes in April; probably went to same school as you, 5 year program with co-op and whatnot).
I don't agree with his point #2 in two ways. For one of our internal applications, we had so much <script> tags embedded into our single-page-app index.html that it was very hard to keep track of dependencies. If you have a straight dependency order, sure it won't matter, but if you start refactoring things out and one module has a bunch of dependencies that also has dependencies, this essentially degrades into rolling out a manual topological sort of the javascript files you include. On top of this more than one engineer works on the application, and different engineers inserting <script> tags at the same time caused a few headaches.
To mitigate this, we introduced RequireJS to our internal app, and now the dependency is declared at module definition so you don't have to sift through a list of <script> tags. You don't fear breaking dependencies of each script files because you put one on top of the other. IMHO it is much better to declare the dependencies to your module explicitly than implicitly through a very carefully topologically sorted series of <script> tags.
To extend to this, when I was in college, my grades suffered because of my unnecessary internet usage (reddit, hn, facebook, all that stuff). So after failing to keep up my promise, I decided to actually leave my laptop at home which is 4+ hours away. I didn't have a computer nor smartphone at the time, so all I had left in the house was material necessary for studying. Needless to say, I jumped from being about 80th percentile to 2nd percentile in the class and this allowed me to gain more theoretical knowledge than my I did in my 19 previous years.
Sad thing is, now that I'm working, I have internet and computer back at home, and I waste a lot of time on it...