"A breakthrough?" Alpha John lifted an eyebrow surprised at Dr. Ochea's words. "How? I always thought they were looking into the wrong specimen or the wrong body." Experimenting on witches was different since witches usually don't have a strong physique. They are on the weaker side of the spectrum.
Moreover, experimenting with magick is very very difficult and more complicated. At least for Alpha John. This is why he and his team are looking into supernaturals with stronger bodies to create the perfect one. They have been focusing more on increasing the strength of the body.
When he heard that those people chose to experiment on a witch, he laughed. A witch of all people!? How could they be so stupid? Again, witches only have magick, not an indestructible body. So, he watched as they failed and failed and failed to find the perfect witch, the perfect specimen.