Very quickly, companies can do paperwork. They may not like it. Small companies have a hard time with it, but they can deal with it. What they can't deal with is uncertainty, and that's really the situation we're into now with most of the movement of people. I think you captured it very well in terms of its not being just about the goods, but about the people and ideas that go back and forth. They're essential for making sure manufacturing works.
We'd all be in favour of anything that could be done to make it more consistent and simplified. I'm not exactly sure about one form versus five forms That can be up for negotiation. It just has to be consistent between border crossings every time of day, between border guards. It shouldn't matter when someone shows up or where they show up: The rules need to be applied in the same way.