I don't see the connection.
Even if ukyo lost a his coin to TF, what does this have to do with the confiscated deposits on weexchange? Or am I missing something.
If you are supposing that because Ukyo lost his personal money, he seized customers' deposits to cover that, I don't how see how this any different from him not losing money in investments, and seizing his customers' deposits to buy a fleet of sports cars . Both are just as wrong and equally illegal.
I would say he had his hot wallets with TF to earn his huge interest %, or at least most of the funds, if you add up all of the accounts that would of had BTC sitting there either in escrow for trades or the like, he could of exported these funds to try and reap the benefit of the % on offer from TF.
He would of only had to keep 50-100 BTC in we exchange at any one time, only once people withdrew their money he would move it back from Inputs.io....
Which for him would be flagged by the withdrawal action from Bitfunder. It may seem instant on your end but he wouldn't need a whole lot of live cash to keep everything afloat.