The video was lame. I don't see how it could be classified as "offensive," and I really don't see it as harassment.
I actually saw something just yesterday at my workplace that I considered to be far more offensive than that stupid video. I work in a warehouse, unloading packages off of trailers for a rather large, well-known company. I won't say which one, but -- well, let's just say it rhymes with EdFex.
One of the guys I worked with yesterday -- young, African-American guy, early twenties -- wore a shirt that in great big letters said "PU**Y." Underneath, in smaller text, "The most expensive meal you'll ever eat."
First of all, it's just not funny. That joke's older than he is. But more importantly, how immature do you have to be to wear that in a workplace, especially when there are women around in your area? You walk around for eight hours with a t-shirt with an offensive word on it, and an crude joke about a sex act, and everyone you pass has to see it, whether they want to or not. And I'm certainly no sissy when it comes to language, but there's no way in hell I would consider that an appropriate thing to wear in a workplace environment.
But I'm pretty sure Kesler didn't walk through the main lobby at Ducks HQ during normal business hours when that video was made. There were like four people in the video, all of whom had to know what was going on in advance, and dude probably wasn't even naked anyway. Relax.