I have seen some of this hype, with various jurisdictions declaring emergencies in advance.
I saw the eclipse in 2017, and was stuck for many hours in stop and go traffic out in the middle of nowhere. It all cleared out by the next day, and everything was back to normal. However, this was in a rural area. I could imagine this causing problems in a more populated area.
I can imagine especially in Indiana that they could have 3-4 million people from neighboring states come in to see the eclipse. That many people can create situations where emergency responders can't get through due to traffic, or other such situation.
Of course nowadays the real risk is that people will get unruly and that some kind of violence could break out in areas with large numbers of people. There's no telling if that kind of thing will happen.
As for the eclipse itself, I am seeing that large parts of the eclipse area will be heavily overcast, so many areas will miss seeing it entirely. It's still 5 days out, but weather forecasts are showing a better chance for clear skies from Southern Illinois on through to the north east. Even in those areas, I think the risk of clouds is still 50%. You could have only partly cloudy skies, and still have one lone cloud block your view of the actual event of totality.
If you do get a chance to see the eclipse, I would suggest finding a way to take it. An eclipse is an amazing sight. Obviously we've all seen pictures, but pictures can't convey the amazing impact of seeing it in real life.
There are all kinds of effects that show up as the moon covers more and more of the sun,
with the air cooling off, animals, birds, and insects going into night mode, the tiny little moons showing where the sun shines in patches through the leaves, all these little details.
Then there is the moment when the eclipse becomes total and you can stop using your protective glasses and see it with a naked eye. It's such a unique sight, a complete departure from normality.