This is a prime example of how people can’t think and can’t simply read:

This story is about the T. rex walking speed, not their running speed. It doesn’t have any implications for if they were scavengers or not. (And, like many animals, including humans, T. rexes were probably opportunistic scavengers but also hunters.)
If you actually read the damn article, it says this:
The tail may also affect Tyranosaurs’ maximum running speed. Previous studies have put T. rex’s top speed at around 27.7 kilometers (17 miles) per hour. This was estimated by the likely maximum stresses that their limbs would experience when running. The new model suggests the tail might help reduce this stress. So you could probably outwalk a T. rex, but perhaps only the fastest humans might outrun one.
It literally says in the fucking article that they could run at 17+ mph. It’s just right there. Not many people can run that fast, and the larger dinosaurs they hunted certainly could not. And juvenile T. rexes would’ve been even faster than that, probably around 30mph top speed.
My guess is that even adult T. rexes were faster than 17mph, probably 20-25mph in short bursts. I think this for a variety of reasons, but the main one is that I remember reading a biomechanical simulation of the speed a rhinoceros could run, and it was 12mph.
In reality, in the actual world outside of a simulation, they can run at 34mph (faster than any human).
Back to my main point, though. I don’t really give a crap about T. rexes in particular but the lack of reading ability and any sort of critical thinking ability at all shows why we are doomed during this pandemic, will probably do nothing about climate change, and will be extinct soon enough.