At this point, it's probably a fairly safe assumption that some of your earliest fond memories on this planet came from Sesame Street.
And while some of us may have taken it more personally than we expected to when Cookie Monster started referring to cookies as a "sometimes food," that just speaks to the investment that we still have in Sesame Street decades after we stopped watching it.
Obviously, the minds behind a specially-themed circus that travels the world were as conscious of how beloved the show is around the world as anyone. But it was only through one recent incident that they became aware of how badly someone wanted a piece of the magic for themselves.
Either that, or they're dealing with someone whose eye for value far outperforms their moral compass.