Then why did the idiot that wrote the press release say it was found as "soft tissue?"
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1685849
“Soft tissues and cell-like microstructures derived from skeletal elements of a well-preserved Tyrannosaurus rex (MOR 1125) were represented by four components in fragments of demineralized cortical and/or medullary bone”
She demineralized the bone. Fossilization replaces most tissues with mineral. She removed the minerals thus making it soft.
Now why do we find BONE from modern species, but only mineralized fossils from dinosaurs?