If stuff doesn't get manufactured for months, we will have a shortage of many other things as well. Obviously we have a lack of demand for other things at the same time.
I don't think there is that much unreasonable stockpiling. People are no longer eating out. Kids are no longer eating at school. So people buy more at supermarkets. They also buy for a week, quite sensibly, to avoid making a trip to a crowded supermarket every day.
Combine that with finely tuned just in time logistics and you get a bit of a crunch. There's simply a misalignment of capacity right now, but there could be a real shortage of some essentials soon.
Fairly few households are interested in buying canned tomatoes 18 quarts at a time.
Gyms are closed, so go try to find a squat rack, a bar, and some bumper plates for a home gym. Or dumbbells. Or even some crappy resistance bands. You can't. Nobody is hoarding 45lb plates for future use, they're demanding them for use now. Expand this for every industry impacted by shutdown orders. It wouldn't take long to think of hundreds of examples of non-hoarding shortages.
Inflation is coming. Shortages are the market telling you that price MUST increase to equalize demand. And it will.