Second Sight’s long-term plan was always to pivot to a brain implant that would bypass the eye altogether and directly stimulate the visual cortex.
The number of blind folks who are receptive to electrical retinal stimulation was always too small for this business model. These crooks knew that and pumped investors for a non existent hope that this would somehow translate into a non existent technology. Suprise suprise, you can't magic your way into these things.
The entire operation was always doomed to turn out this way.