It looks like they wanted to keep customers money but later found out it was not going to be easy for them to do that. If not of this, why would they decide to shutdown in the first place and refused people to make withdrawals before the deadline they gave. They have to work extremely hard to regain their reputation which they were at par with MEXC and Gate.io. This incidence is enough to destroy whatever is left of them because people will be afraid to use them freely like before.
Shutting down the exchange was a big decision, it wasn't a decision they made after waking, a meeting was held, and the board of executives all sat down behind a desk and decided the fate of the exchange, who wants to be a victim twice in a row after planning a return scheme.
It pains me that some people will still make deposits with the exchange, that might be when they eventually pull off the big scam, both the previously held crypto and the new deposits, they will do away with.
People already moved on to other exchanges, Bitmart was never among the top ranked exchanges, so coming back isn't going to fix things.