In a lab, you manufacture an experiment in a sterilized Petri dish / Vial, so you have QC.

With these mRNA shots, you manufacture in a "non-sterilized" Petri dish, a human body, which is essentially a mass of chemicals you have zero control of, being everyone's chemistry makeups are different (food - medicine intake / present diseases / etc).

Maybe the above is why there has never been a successful product developed with mRNA technology, and this report exposes this wild uncontrolled manufacturing process that takes place in each human body with these deadly shots.