I have had probably 10-15 bunches of Praying hands over the years. One bunch is pictured in the post above, withough the fusing. All the rest have looked like they are supposed to except for one more bunch that had two hands unfused, and the rest "normal". So, odds are you next bunch will be normal, if it really is praying hands. Whatever causes the fusing is apparently partly affected by weather, culture, etc., and not rigidly absolute from the DNA.
They are fine as a desert banana, just let them ripen up a little bit (not on the green side). They are fun in a fruit salad, because the usually have interesting shapes when you cut them, square, trapazoidal, pentagonal, etc. and tend to be just a touch orange/pinkish - not as white as a store banana.
You will notice that the unfused ones have the same shape and look as Saba, and fused or unfused, they have the same color, bunch style, and (for lack of a better word) scarring at the tips and along the "corners" or edges, which you don't see in too many other varieties. They also both have a kind of chiseled, angular entdto them.
This is the scaring on Saba:
