It was probably the people complaining to the authorities (not the people actually in the program) that caused the problems. The lending platforms used to get lots of people lending but since bitconnect closed the lending, they are all struggling. What they probably need to do is allow capital release at any point with a fee depending on the amount of interest that was paid already.
If the complaints were baseless why did they shut it down if they could have continued forever according to you? Perhaps it was more than that, maybe something illegal, like a ponzi scheme?