While I don't necessarily find it offensive, it's definitely bordering the line, and I think it's a fairly poor pr tactic in any case.
I think one of the biggest issues with the perception of men who use this type of toy is that of the misogynist. Put to the extreme, I think of those men that were on an episode of Weird Sex dedicated to men in "relationships" with sex dolls. They complained that real women were judgmental, talkative, demanding, etc. That the toys allowed them to have a relationship with the "best part" of the women. The part that gets fucked. The part that can't ask you to do things you don't want to, nag, talk back.
The thing companies selling fuckables should be doing is trying to widen their audience and make their products seem more agreeable to you know, "normal" people who have normal social sexual relations. Convincing a girlfriend that your pocket pussy isn't degrading when it degrades women right on the box is sort of tricky. Instead of selling the, "hey you can fuck a pussy without the rest of that annoying bitch!" take on these products is a bad call, rather tasteless, and will only impair their ability to gain traction among wider audiences.
There is a description of a masturbator "realistic pussy" product here on EF, which I've already voiced my disapproval of that exemplifies this technique. In the first two sentences, they used each of the phrases "slut" "bitch" and "hot bitch." It said the device feels "better than the real thing," used the word slut a few more times, and then raved about how "she" is "warm... tight... and NEVER says no!"
"No commitments, no bullshit, no worries about knocking her up."
I'm sorry, but when it gets to that level, you ARE being offensive. And it's not a good sell strategy, because fact remains that the majority of people who would ever be interested in a product like this are not interested in it to replace sex with another person. They want to replace their hand. Market to that.
