That is right. At least, they should have promoted the minimum amount to be taxable (I don't know the right English word) to the new system. In the old system, smaller businesses which did less than amount x business could be excluded from the taxation. They should at least have a small amount left for real small businesses that have few foreign customers .... So, a business owner must decide, if he takes the hassle for one or two customers or just says that he takes no foreigners at all!

They could have said, that business with less than X "foreign" income could still comply to their own countries taxation ... but no, with such a thing, they just created more bureaucracy and support the big players like Amazon, against which the regulation should have gone in the first place ... (at least, that was the explanation).