Yes, straight women are attracted to men and enjoy Magic Mike and 50 Shades because of that. What's your point?
The clip showcases Howard's character, a professional woman with authority. She's clearly uncomfortable occupying this position. Howard, starting the clip out professionally, is met with sexual innuendos by Pratt's character. She is seen as a sex object, not a professional woman. Howard's character is further stereotyped as "a ball-buster," a type a-personality who is also a kill-joy. Men often react negatively to female bosses since they feel emasculated, and women in power are often not respected. Pratt's character uses sexual language to achieve dominance. There is a gendered struggle for dominance in the clip that has been featured in film for decades, and once again the man is more likable and more competent.
What I described doesn't happen in every workplace. It's an extremely stereotyped sexist scenario that is still portrayed everyday, as JW proves. The clip doesn't feature Pratt groping her or anything physical, but that doesn't mean it is not sexist. Many straight men are comfortable watching a scene like that because that is how they want power relationships to play out. Feminism has been dealing with these negative stereotypes since the second wave, and apparently not much has changed (hence Joss' point).