The Nano-Lipid packaging was never studied, properly. The study is being performed, in real time, with all the poor souls, who chose become a test subject.
Not to say that it may not have legit applications for specially targeted therapies for serious illness.
For example, if there is an effective mRNA therapy for Neuroblastoma I can't see how mRNA might be justified because the use is restricted to a single individual who has a pretty poor prognosis.
But injecting experimental, untested mRNA along with all it's impurities into literally billions of people, including pregnant women, babies and young children, young adults and people under 50 years of age who are at virtually zero risk of serious covid complications was simply crazy.
And now we are learning it may also have been very ill advised and potentially dangerous.