Who did this independent analysis?
Several research groups have looked at the acoustic ping data, including from Universities. Look it up in the media, you should get at least one. Feel free to call, they are getting sick of explaining it to conspiracy theorists.
If the signals where from a ULB, there would be some specific temporal profiles. Combine that with some other assumptions and its fairly obvious its not from the ULB's. But that takes time and cross checking.
Was it a ship that caused the false pings ( and if so what ship? ) or was it the TPL-25 or was it both that supposedly caused the alleged false pings. Then comes the how? What item on the ship or part of the electronic circuit of that item or the TPL-25 caused the false pings? There should be complete explanations.
If they new, then so would we.