It would be much easier to package those into extracellular vesicles (exosomes or microvesicles) than into mitochondrial-like vehicles. That has been an active

It would be much easier to package those into extracellular vesicles (exosomes or microvesicles) than into mitochondrial-like vehicles. That has been an active area of research for a fairly long time (decades), and there are already clinical applications that have been commercialized (eg.: mRNA vaccines packaged in lipid particles).