Previously, if you put in an ACH request after the trading closed BitFloor would show it as processed and having left your account. Obviously it didn't actually show up in your bank. The snippet you posted simply shows that the ACH was attempted on 4/18 but on 4/23 the funds were put back into your BitFloor account. This should make you feel better as they still have a record of who had what in their accounts.
I haven't emailed bitfloor/Roman yet so I came here for a little reassurance(de-emphasis on the ASS).
So thank you, kindly. I realized after posting that the fact that they still had a record of my funds was indeed, a good thing. I really hope this works out for them. I like their whole system.