IMO, because of LDO's low cost, and easy administration - it has much larger long term potential. Research tamiflu stockpiling.
No company is perfect. The politics of CFS are fierce. Ampligen for CFS is HEB's most advanced program... going back a decade or more. Until recently, like the last year or two - federal agencies doubted the disease was real. For the FDA to approve a drug like ampligen, an immune modulator, they would have had to admit the disease was real. This battle is still going on in some quarters - research the PACE trial and James Coyne, a prestigious academic, saying this 2011 PACE trial, recommending CBT therapy and GET exercise, for CFS is a complete fraud. The politics are just now coming around.