The cow hitch works ok with roller furling
genoas which are rarely if ever changed out, and can't realistically be tied and untied every time the boat is used so they are left out exposed to the elements all season.
Bowlines work, but take more time to tie and unti, and on my boat in particular when using the working jib
the knots themselves can get caught on the shrouds when trimming for upwind. Plus bowlines hurt when they whack you, and there's two of them hanging off that clew.
My original plan had been to cut my jib
sheet into two, and eye splice one end of each sheet, and use an amsteel soft shackle
to attach the sheets. But this knot took me 5 minutes to tie, and accomplishes the same thing. I just thought it was cool.