My concern with such a feedback mechanism is two-fold:
- In phrasing feedback as a Y/N question like this (or any option choice), you constrain the range of feedback. For example, this DK death grip might be bad because the new animation is too laggy, or it might be upvoted because an inadvertent bug allows them to grip mounted players off their mount. Such subtlety gets lost in polls.
- In posing this question, the devs communicate two undesirable things to respondents:
- This is what we want your feedback on (and not other things); and
- We will make decisions based on your input.
As a software architect, I can tell you that both those messages are bad. We do want input about all aspects of our software, but we reserve the right to make decisions based on factors other than user input.
Having said that, I laud the OP for making a positive suggestion and taking the time to illustrate it, even if I don't agree with it.