For me, Hope's attitude only makes sense if you see it through the lens of "I am second choice in MY FATHER's eyes to wear to suit compared to YOU?" and dealing with him as a symbol of her relationship with her father; then being kinda won over despite herself as she starts to see him as a person. I think it was over strained trying to keep the "happy caper jokey" tone as they dealt with the much more emotional story of Ghost and the recurring theme of Father & Daughter Relationships. (side note are my issues showing or is Pym seriously giving Howard Stark a run for his money in the "we refuse to acknowledge this father-child relationship is messed up" category?). The dusting was a mean sucker punch that did nothing to serve the ark of that movie, and it only served to try to force a tie to Infinity War which itself was a mean sucker punch of a movie, IMHO. Seriously it was like 10 seconds they could have put it in the death montage in the bleak movie as opposed to taking the win away from A&W.