Ciabatta

Hi, I am trying the Ciabatta recipe that is posted under Favorites Jason's Quick Coccodrillo Ciabatta Bread.

I used 300g KAF AP and 200g KA Durum flours. I did not use bread flour because I have read that KAF AP is as strong as other bread flours. I mixed in a Bosch Compact mixer for 20 minutes. The dough never really cleaned the bowl or rose very much on the hook, but I stopped anyway and scraped it into an oiled bowl to rise.

Fatal mistake?

Thanks, Bob