They even mention this :
the Trust is determined to be a “money transmitter” under the regulations promulgated by FinCEN under the authority of the US Bank Secrecy Act and is required to comply with certain FinCEN regulations thereunder, and the Trust receives notice from the Sponsor that, because of that determination, termination of the Trust is advisable;
I dont think this IPO will be approved overnight ...
They are effectively receiving USD from clients in exchange for a BTC tracker ... is that money transmitting ? Sounds pretty close to me.
deathandtaxes says they'd get exemption for brokerages
https://bitcointalksearch.org/topic/m.2631106