Definitely the better forum for the question .... now, just sit back for a day or so and wait for the TPs to spot it and the specialist commentaries will come in ..
If the source came from a published book, then it is fair comment for you to identify the book's title and author which might help refine the answers to your question. I shall be surprised, though, if the answers are not along the line that the story is a bit wide of the mark.
The SuperCub is a bit different to many lighties in that it can be sideslipped very aggressively without, in my recollection, any problems developing or even being indicated .. but, then again, my experience on Type was limited to three S/N examples only in routine towing ops. A long time since I have flown one but my recollection is that we routinely used full rudder and near full stick deflection to maximise descent angle ... with the cowardice which comes with age, I suspect that it might have been more prudent had we discontinued the slip sometime before the landing flare .. but that, I guess, was a consequence of youthful exuberance and stupidity ... no-one ever came to grief or even had a fright that I know of ...although in a strong crosswind, the gable markers periodically came to an abrupt end of useful life ...
If I might add a subsidiary question, what is the difference between a slip and a skid ? ... the same thing I would have thought, except for "skid" probably being the typical term used if the aircraft's attitude is substantially level ?