This is the "proximate cause" but anyone who "knows the world" knows that arbitrary power leads to corrupt abuse of this sort quite directly. IE, sure they stopped cause they "found problems" but one would expect such problems existed from the start and are inherent to a system of seizing cash on suspicion of ... something.

Which is to say it's not that no one read these explanations but that such explanations aren't meaningful and the real answer is politics as many have mentioned in other comments. That is to say, the mystery is what exact politics lead to this pull back now.