I had a look at those, Leenia, in case some had managed to squeeze a slip jig into 2/4 time, which would be interesting. The sort of thing a Northumbrian piper might do. But one was a polka of the same name, another was there simply bcause the original dots had two tunes on the page and the familiar Drops of Brandy was the second. The third was very strange!
I rather think G-force is right, Jesu Joy is similar to a slip jig. And, regarding the bass, is just right - 1st and 3rd beats accented strongly, the second only slightly (Bach did after all write plenty of dance music!).
Regarding 3/2 Hornpipes, these normally have 3 pretty well equal heavy beats in a bar (Handels Water Music has a well known one), with plenty of syncopation, quite different to a slip jig. But there is another variety written in 9/8, which seems to fall between the two stools, and often is found in both English and Irish tradition, eg Top the Candle.