I can see that. But, I don't think it's a bad thing to acknowledge either. After all, it does nothing to help the business for people to get frustrated, to the point where they blow up the group and then leave the hobby. I know that's what happened to me. I quit running for a group after years of frustration and just took a break entirely.
I'm fairly sure that "I had really negative experiences" ranks pretty high with people who drop out of the hobby.
But, yeah, not sure if WotC is the one who should be talking about this, but, I do think it's a subject that has some legs that wouldn't hurt to see talked about more often. It's kinda bizarre really. If you don't enjoy playing golf with Dave, then, well, you just don't golf with Dave. It's generally not a big deal. But, telling someone, "I'm sorry, but, I don't like playing elf games with you" seems to be incredibly difficult.
At least, it's really difficult for me.