Yes, normally the capital release would be in dollars in the lending wallet. So people would then have to press the transfer button to transfer to BCC coins at the current rate (it bypassed the exchange). The only problem with this was that because everyone would receive it at the same time, the coin value was likely to go down due to people being forced to sell at the time before it depreciated (as it would be going lower in value) so bitconnect would have to pay back more BCC than was initially loaned (normally they always pay less even including all the interest).
They could have stopped the lending in a few other ways but basically anyone holding any cryptocurrency can easily lose 90% if there is panic in the markets.
The value of the BCC coin is likely to return in the future when you think how many times more valuable bitcoin is for almost double the current supply.
Suppose BitConnect had tried to wind up their lending platform in a responsible way, and simply stopped accepting new loans. Loans would expire at all different times, the BCC would slowly make their way back onto the market, and people could cash out at a profit as they were promised.
Why wouldn't that work? Well, as soon as BitConnect announces that it isn't accepting any more loans, the demand for BCC tokens pretty much dries up. The only reason most people were buying it was because they could get crazy daily interest lending it to BitConnect. Once that goes away so does the demand. So the price drops. Maybe not 90% overnight, but steadily.
Every day as new loans expire, BitConnect has to pay out ever increasing amounts of BCC to meet the USD value expected by the lenders. Those ever increasing amounts of BCC get dumped on the exchange, causing the price to drop further and causing the amount of BCC needed to repay the next day's expiring loans even more. This compounds exponentially day after day for the next 200 days. There's no way BitConnect has enough BCC tokens to repay everyone fairly as the BCC price drops ever closer to zero. They end up insolvent, unable to repay the bagholders.
Repaying all loans at once, using an over-inflated valuation for the BCC tokens they were repaying people looks like a desperate attempt to get out of an insolvent platform.
Nobody is going to want to hold BCC tokens going forward. They will be seen like PayCoin - just another failed scam coin.