Kromm, i was under the impression, that this was meant as a wink and a nod to Ant-Man 2, when Hope made fun of Scott for his fangirling of Cap and his willingness to accept his leadership without question. And here she is doing the same. At least that´s how i took it.
That goes to one major problem i had. From how i understood it, you needed to sacrifice what you loved to get the stone. Clint and Natasha both actively fought to not have that happen. They were both willing to die themselves, and Natasha managed to hit the ground first, to put it very flippantly. So Clint suffered an enormous loss, a loss he had tried to prevent by killing himself. I thought you had to give someone up (as Thanos/Gamorra showed, which was about the opposite of how Clint/Nat solved the thing) and live with what you did. For me, Clint didn´t sacrifice Nat, he was unwilling to sacrifice her, but he lost her. That that was enough to win him the stone was confusing to me.
Also, for me the sacrifice did not extend to the use of the stone, it was just the way to procure it. Did I understand that wrong? I mean, Thanos used it a second time when he destroyed the stones, but what did he sacrifice then?