Answer by JDawgSA93. Confidence votes 64. Imperfect fungi are considered imperfect because they do not exhibit in any of its life cycle both means of reproduction-sexual and asexual reproduction. Their most common means of reproduction is by asexual reproduction.They were called imperfect because no one understood their life styles perfectly. Also there is current debate over how to classify these fungi.he imperfect fungi were once grouped in the phylum Deuteromycota, however this phylum has been removed and there is currently no place for these asexual fungi in the current fungal classification system. It is because there has never been a sexual reproductive stage observed from them.