It was very dehumanizing, and I think (hope) that was the entire point.
I'm also surprised about how often I see English-speakers talk about "females" rather than "women". I vaguely suspect that might say something profound about an aspect of American culture that's deeply wrong about how it views women.
Or, less cynically, because no one uses 'gals'. There is no female analog to 'guys'. Males under age 18 -> boys. Males 18-35 -> guys. Males over 35 -> men.
For female, it's less clear. Calling a 20-something a 'girl' might be viewed offensively as diminutive. Calling college students 'women' can also seem awkward casual contexts (it's perfectly fine in most).
I've gotten to a point where I'm more frequently associating with people (including 'females') in the 25-35 age range and have had this debate internally. I've started using 'lady' for this very purpose, though I realize it's not as socially common. I might recount an interaction by referring to 'A guy' or 'A lady' I met (rather than 'girl'). Personally, I'd love for it to be socially acceptable to refer to people with words that don't presuppose age (or gender, for that matter) but that time isn't coming anytime soon.
I'm also surprised about how often I see English-speakers talk about "females" rather than "women". I vaguely suspect that might say something profound about an aspect of American culture that's deeply wrong about how it views women.