It is indeed like this. - Framework itself doesn’t pay any taxes themselves (at least directly).
They are using the services of DHL Express, who will register the shipment at customs (on behalf of you as the receiver), pay the arising import tax, and will bill the amount to Framework (+ service fee) instead to you. (Therefore we are also more or less paying import tax on the paid tax included in the price…)
Otherwise there would have to be a customs document stating framework paid the taxes beforehand to the customs. But since they didn’t do that, DHL Express did all of the customs work.