I'm always surprised to go another day where I don't hear anyone mention the risk of this mixup with Tushy, the anal porn site, and Hello Tushy, the bidet company.
A discussion on the other site claimed that the fuck-up was in the copy that Universal sent to Mattel.
And that wrong websites frequently end up on packaging in other industries.
Mattel seem to be doing the sorry-dance for it, so no idea if it's true. Though I'm sure Universal would be very keen to not be involved.