Binance is not the only one that has this annoying behavior. Almost other centralized exchanges does have this characteristics in them when you make a deposit. Typically, all coins have a minimum confirmation that must be reach before you can claim real ownership of this coin. For instance, if you wish to deposit Bitcoin on Binance exchange, you will need to have 3 confirmation before you can trade that coin. Under normal circumstances, you should have more confirmations so that they can be sure that the transaction is not reversible.
In your own situation, you deposited FILE coin and under their rules and regulations to be able to trade a successfully deposited coin, you need to have 60 confirmation to trade the file coin and you also need another 900 confirmation before you withdraw the equivalent of that coin incase you trade it to another coin. It's there in their rule.
I'm not trying to defend Binance but the rules where there and they might have their reasons but perhaps you didn't took it into consideration before making deposit of the coin. Maybe you should check another exchange that may have a confirmation lower than this long time.