No they are not. VAT and invoices is just something else that's also easier with EU vendors.
> But if a company invoices you with bad invoices then you can just refuse them and ask the correct and resubmit - even in the USA
That only works well if you hire an individual contractor or a very small company who depends on your payment.
SaaS companies don't give a fuck if you are happy with their invoice. High profile example: Github won't even tell you if the invoice is with VAT or not -- it just says "price includes VAT if applicable" on their invoice. Support won't tell you what it means. How is my accountant supposed to book that? Fortunately my Github bill isn't big, so I probably won't get in trouble over incorrectly declared VAT for the Github invoice.
If there's a EU vendor, it's always going to be my first pick, because I just don't want to waste time accounting for funny US invoices.