I'd guess, mostly to save money. Lost on the detractors is the fact that this company actually made it from the Pink Sheets into being a fully SEC reporting company, and without dilluting all the shareholders into oblivion. I bought initial shares at eight cents. Even after all the necessary funding, those initial shares are still up over a thousand percent.
Gene Seymour is extremely frugal with company funds, gets other institutions to foot the bill for the actual research expenses, and doesn't even maintain an office with a receptionist. In this day and age, a cell phone and an airplane are his office.
Those are good, positive things. It's a shame people try to forge even these positive aspects into weapons.