Getting attitude at a Guest Services kiosk is a different level of unacceptable. But, even waiting in long lines to get to customer service solidifies my point. Guests should not be getting in line with expectations of receiving 'equal' value. If all they do is switch the Slinky Dog time back to what it was, the guest still loses because they had to wait in the long line to get it fixed. Disney should not only be making the original issue right, the guest should demand additional compensation, whether it be an anytime ride pass, a worthwhile store coupon, or preferred seating for fireworks/parades. Personally, I would go into that discussion with a mindset that I'm not settling for just one extra anytime ride pass, but probably 3-5 of them depending on how egregious the offense was.
And, please don't read into that and assume I'm going to bully the Customer Service Rep. I would probably warn them up front I'm frustrated and immediately ask for a supervisor. I understand that the initial customer service rep probably can't give me what I will be asking for. But, I would expect Supervisors to have more flexibility in what they can do.
Most of the time we've had to use customer service in the parks, it has been for things out of Disney's control (Hurricane Matthew cancelling a couple of our ADRs, someone in our party losing a camera, magic band, etc.). Those aren't Disney's fault, I would be wrong to be upset, and I would accept what they can offer. However, when Disney rolls out a product that does not work right, especially one that is lousy even without the glitches, Disney deserves to be held accountable.
Demand more and demand better.