Not understanding why a huge number of a carnivorous dinosaur species results in not finding many fossils of it. That might hold true of all the other dinosaur species that were consumed by it though, but that's just my way of thinking.
Who pays these dinosaur researchers and why? How does mankind currently benefit from knowing about long-dead dinosaurs? Just curious.
Information just for information’s sake is far better than the ignorance you seem to be promoting.
The more we learn about the past, the better prepared we are to meet the future.
The only group that thinks the way your post came across are the radical muslims. They think that if it isn’t in the koran, it doesn’t matter and should be destroyed.
Proof? The Taliban and the Buddhas. Read ANYTHING put forward by the mullahs. Ignorance writ large.
Even if what these scientists posit is incorrect, it gives us a starting point to learn from and either prove or disprove their thesis.
Real science is putting forward an idea and then trying to DISPROVE it.
2.5 billion animals over 3 million years is NOT VERY MANY, btw. That works out to less than 8500 critters alive in any given year, and fossilization is a vanishingly rare event.