We could talk about VAT all day... We have long conversations about it with the accountants regularly!
Most countries apply it on a national level rather than on a state/local level. I will discuss with my team what options we can look at, but we can allow you to sell in Europe without VAT as long as we disclose you as the seller in the receipt. I would guess Journeyman can't do this because they are a distributor rather than a service provider.
For physical items, we only need an email address if the user is paying with PayPal because we can collect shipping details from their PayPal account. If they are paying by card, we take their address before card details.
Payment options are based on what currency you are paying in as a customer, not where the filmmaker is. So if you try to purchase anything from us while in the US you will currently be directed to PayPal no matter what option you choose at checkout. Try it below, and you'll see what I mean.