The fact is that nobody expected to find soft tissues in dinosaur fossils, so never looked for them, so they weren't found.. until recently.
Now, it turns out, ancient soft tissues may be somewhat common:
How can this be?
The answer it seems is that, under ideal conditions, iron in dino-blood can act as a preservative, like formaldehyde, keeping soft tissues viable more-or-less indefinitely.
Dinosaurs' iron-rich blood, combined with a good environment for fossilization, may explain the amazing existence of soft tissue from the Cretaceous (a period that lasted from about 65.5 million to 145.5 million years ago) and even earlier.
The specimens Schweitzer works with, including skin, show evidence of excellent preservation.
The bones of these various specimens are articulated, not scattered, suggesting they were buried quickly.
They're also buried in sandstone, which is porous and may wick away bacteria and reactive enzymes that would otherwise degrade the bone."
So one scientific question, assuming the presence of multiple samples of dino soft-tissues, is whether they "prove" Young Earth claims the earth is only thousands of years old?
I'd say they only confirm that under ideal conditions, some organic material can be preserved indefinitely.
Maybe ancient soft tissue is common because it’s not ancient.
Thanks B!