I cannot imagine local JWs feeling embarrassed by the video.
initially no, but those who work with or go to school with the LBGT community may have to have uncomfortable discussions about this. They may not feel as passive towards witnesses as they once did. Because it isn't a watchtower quote about god not approving of homosexuality, its a cartoon that addresses gay marriage in a specific way.
By putting this in a cartoon, they have chosen a very offensive medium (kids cartoon) for delivering their doctrine, also one that is easily spread. I don't care what HQ thinks about it or most R&F, I like to think that those who would normally say they know witnesses and they never hurt anybody start to see witnesses as more overtly harmful going forward.
I should write them and say for the love of jehalapeno please make a Caleb and Sophia video about shunning!