Nothing you said is evidence that dinosaur fossils are thousands of years old as opposed to millions of years old.
I posted yesterday (#856) what Dr. Mary Schweitzer said recently about her findings. It's still millions and not thousands.
Now, in this Acta Histochemica Journal research paper you refer to, it does not state the age of the fossil in question.
Why is that?
everyday experience tells us that soft tissue does not last very long...just do a 'data on your doorstep' thought experiment with this...
suppose one morning you wake up and find a bone sitting on your doorstep...it is cracked open and you can see marrow inside... most likely you will assume that this bone has a very recent source...maybe your neighbor's dog was chewing on it and then discarded it there... what you -wouldn't- assume is that the bone is tens of millions of years old and that some near miraculous process preserved the marrow for all that time...
the more parsimonious explanation for soft tissue found in dinosaur fossils is that the fossils are thousands and not millions of years old...so the young earth creationist explanation actually accommodates this data -more easily- than conventional old earth theories...that makes the soft tissue evidence in favor of young earth theories...
you asked for evidence and this is evidence...any data that can be accommodated more easily by one model than by the alternatives is evidence is favor of that model...
i will also add that schweitzer has reported finding DNA in some of the fossils she has studied...here is a relevant quotation from the abstract of her paper in the bone science journal 'bone'...
"Furthermore, antibodies to DNA show localized binding to these microstructures, which also react positively with DNA intercalating stains propidium iodide (PI) and 4',6'-diamidino-2-phenylindole dihydrochloride (DAPI). Each antibody binds dinosaur cells in patterns similar to extant cells. These data are the first to support preservation of multiple proteins and to present multiple lines of evidence for material consistent with DNA in dinosaurs, supporting the hypothesis that these structures were part of the once living animals."
if schweitzer really has found dinosaur DNA in these fossils then it makes the case for revising the data of dinosaur fossils even more acute...because all studies to date have shown that DNA simply does not last tens of millions of years...
for example there is a nature article from 2012 summarizing a study of moa bones published in the biology journal 'proceedings of the royal society B'...the researchers found that DNA has a half life of 521 years and that all nucleotide bonds in a sample of DNA would break down in no more than 6.8 million years...
that is a tenth of the supposed age of the dinosaur fossils in question...the article even goes so far as to proclaim based on the study and the conventional ages of dinosaur fossils that it is impossible to recover dinosaur DNA from fossils because they are just too ancient...
...and you know how scientifically minded people are supposed to respond when testable predictions fail!
finally regarding the paper in acta histochemica authored by the creation research society's scientists...we all know that young earth creationism is non grata in virtually all of the professional journals...if the authors even so much as suggested that their data implies that the fossil they studied was only thousands of years old their paper would have been rejected solely on those grounds alone...