Right.
And as a side note, I guess I could actually testify on Disney's behalf. I have been in a full character costume a number of times (we rent them to entertain kids at our church's annual summer festival) - with the giant furry suit, mittens and "head".
I can attest that when in a suit like that, you have absolutely NO sense of your surroundings or where your hands are. I basically stood still and had my "attendants" escort the kids up to say hi, stand beside me, hug me (I think...just knew I felt movement), etc. I would hold my arms out, then pull them forward until I felt resistance (assuming that meant I'd reached their backs and it looked like my arms were then around them).
I never had to interact with a baby in someone's arms, but I can almost assuredly say that if I had been faced with that situation, I would have had NO idea if my mittens were pressing against a naughty part vs. the baby or an arm. In most of those costumes, you either look through the eyes (which are placed above a giant nose) or the mouth (so all you can see is feet). The same applies to most of Disney's costumes. You can either see the sky, or feet. To actually see something directly in front of you, you have to tilt your head in an awkward direction.
And again, since there is a 90% chance that Donald was actually a "Daisy", that just adds more fuel to the "bogus" fire, in my opinion.
Am I saying Donald didn't touch her ? No. But I'm saying it was likely not intentional, and does not represent a "continued" problem.