I think the "most-not-good" angle here has to be the strain it's causing in the SEAS/Sesame relationship. Seeing Sesame Workshop having to come out with a big apology statement/denouncement for something that happened at a park they don't operate isn't good at all.
I agree that the additional videos add a lot of fuel to the fire, but I also do still suspect that brand-reputation-wise, this is a pretty temporary-looking hurdle right now.
I've been on twitter following this, and people have been posting counter videos of many kids of various races and ages getting ignored. Not saying this is getting sensationalized and overblown and trying erase it, because it is a problem no mater what. There's people replying to tweets about this with comments about kids being ignored in other parks, Disney characters blowing kids off, and the like. And interesting one I saw was that a SP character was accused of ignoring a kid that wanted picked up, and someone shared a screen shot of where in the parks policy it said that characters don't pick up kids.
Personally, I think a potential employee problem is becoming a park problem because people are misplacing anger towards it.
I do feel like because of that, it's going to be a hurdle thing once more and more comes out of things like this happening at companies. I think that more companies need to do what Disney does with walk around characters. Give them a companion that can spot kids; or just have all the characters on floats to avoid this as they can't stop and hug/highfive every single child.