some original strains, like sour diesel, trainwreck, chemdogg are strains where clones are the only way to get the true genetics. Hes saying that if you could hermi the plant then you could get seeds for a strain where cloning is the only way to get the plant. and the answer is yes you can, but, sometimes the seeds from a hermi will hermi by themselves and have weaker genetics but it is possible.