A B2B SaaS is very likely to have US based customers with employees working remotely from all over the world, either temporarily or permanently.
I’m honestly a bit surprised to see so many people attempting to counter the idea that some businesses don’t need to be accessible from every region in the world.
just imagine for a moment people may want to send gifts for their loved ones.
But even if you don't mind doing so... Our company didn't have any outside-the-US employees - until we did. We hired one remote in Canada, and we hired some contractors in the Philippines and Portugal. So you're creating a situation where either you have to fix your ability to let people connect from outside the US right now (with all the security issues that may cause, which you also have to fix right now), or else you lose a customer each time something like that happens.