Thisintroductionofidentifyingmistakes,aswellasfamiliarisingstudentswithfailureandsuccessinrelationtothetopic,couldwellhavehelpedthemtobemoreopentotheideaofconstructivecriticism;however,thisispurespeculationbased on the observations.
I think at this point it would be more useful to know whether you think, subjectively, whether the technology use added something positive to the learning environment. Something that would make you want to use it again.