Personally, I have no beef with 75 million year old trace amounts of soft tissue. If it gets sealed off to the point of chemical reactions stopping, you might as well look at it as time stopping. It's an incredible long shot, but so is our existence. .. or the universe existing the way it does, for that matter.
I do have a problem with young earth creationism that tries to use discoveries like these for their own ends. I think they're trying to do the equivalent of making applesauce from oranges ... or a burger out of veggies .. all disgusting stuff, imo. I happen to like apples, oranges, burgers, veggies, the Bible, and Sciences ; and don't think there's any reason to spoil one with the other. I do think there are ways that they go together nicely.
A bit of trivia for the heck of it .. The first person to estimate the age of the universe as being "finite" and comparable to the numbers arrived at by the big bang theory was Moses ben Maimon (1138 ?1204 AD), a Sephardic rabbi. His calculations were based on the various cycles and references to time differentials between man's and God's perspective (mentioned in books which are today found in the OT and Talmud) .. to arrive at 15.3 billion years. I haven't been able to find anything with a comparable number between his estimation and the big bang theory ... doesn't really mean anything, but I think it's cool. Also, he didn't insist he was right on the estimation, just presented it as an idea.