For-profit companies jurisdiction shopping without any physical presence is so clearly sketchy that it's wild anyone could see it otherwise. I can't imagine a normal person not being shocked in disbelief when they first learn about the concept of tax havens.

Maybe when it’s Panama. But there is not a single sketchy reason why companies choose to incorporate in Delaware, for instance.

There are very legitimate reasons to incorporate in another location. Some are not only not sketchy, but even altruistic, e.g. incorporating in another state for the purpose of incorporating as a PBC.